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Mirati Therapeutics

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FY2014 Annual Report · Mirati Therapeutics
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2014 Annual Report

Mirati Therapeutics, Inc.

Mirati Therapeutics, Inc.

9393 Towne Centre Drive, Suite 200

9393 Towne Centre Drive, Suite 200

San Diego, CA 92121

San Diego, CA 92121

(858) 332-3410

(858) 332-3410

www.mirati.com

www.mirati.com

cov15-4308-3_23057_1-4.indd   2

4/8/15   1:46 AM

Targeted cancer therapies for definedpatient populationsDear Shareholders,  

I am pleased to share the significant progress made by the Mirati team over the last 12 months.   

Our employees are driven by a passion to create life-enhancing oncology medicines for patients 

who have terminal diseases and few treatment options, including non-small cell lung cancer 

(NSCLC), diffuse large B-cell lymphoma (DLBCL), and bladder cancer. Our approach to 

oncology research and development centers on the idea that “one size fits all” treatment 

methods don’t take into account that cancers, like people, are distinctly different at the 

molecular level. Cancer is a genetic disease that can result from changes in genes that control 

how cells grow and divide. Genetic drivers of cancer can be referred to as aberrant changes to 

the DNA sequence of a cell. While epigenetic drivers indicate there are aberrant changes 

outside of the cell that are not related to changes in DNA structure. 

The programs in Mirati’s pipeline address both genetic and epigenetic drivers of cancer and 

target patient populations, carefully selected through genomic testing, that are most likely to 

benefit from treatment with our medicines. We believe that targeting these genetic drivers of 

cancer holds the greatest potential for improved therapies and represents the most promising 

approach to oncology drug development. Developing targeted cancer treatments may (1) lead 

to improved response rates in specified patient populations, (2) enable an accelerated 

regulatory pathway, and (3) result in significantly better outcomes for patients who need 

improved therapeutic options now. 

Program Highlights 

We continue to cultivate a rich pipeline of investigational, targeted oncology therapies and in 

2014 we made notable advances across our clinical programs. Because of this steady progress, 

we have the exciting potential to initiate registration trials by the end of 2015. 

Genetic programs: Tyrosine Kinase Inhibitors 

Tyrosine kinases are proteins that play an important role in regulating cell growth, differentiation, 

and survival. Because kinases play a vital role in controlling cell growth, genetic alterations 

within kinases can result in unregulated cell growth. This can lead to the development of many 

types of cancers and is referred to as a “driver” of tumor growth. 

In 2014, we determined the dose needed for MGCD265, our lead tyrosine kinase inhibitor, to 

fully inhibit the MET and Axl pathways which, when mutated, are drivers of tumor growth. We 

are enrolling select patients, who exhibit driver mutations of MET or Axl, in a clinical study that 

 
 
 
 
 
includes two cohorts, one for NSCLC patients with MET and Axl genetic alterations and the 

other for patients with any solid tumors with these alterations. This study is progressing well, 

and we anticipate initial proof of concept (POC) data during 2015. If positive, we will be in a 

position to begin a registration study that could lead to a regulatory submission in 2017 with 

potential approval in 2018. 

Our second tyrosine kinase inhibitor program, MGCD516, targets the Trk, RET and DDR 

pathways. Mutations in these proteins have been implicated in a number of cancers, such as 

NSCLC. We are conducting a Phase 1 dose escalation study with MGCD516, and we expect 

that in the first half of 2015 we will identify the optimal dosage required to inhibit tumor growth. 

We plan to initiate expansion cohorts in patients with Trk, RET and DDR genetic alterations 

during the second half of 2015.  

Each year, more than 1.6 million patients worldwide are diagnosed with lung cancer, and 

existing treatments leave a significant unmet need for new molecularly targeted therapies. We 

are excited about the potential of our programs to benefit the 12% of NSCLC patients whose 

genetic alterations occur in the MET, Axl, Trk, RET or DDR pathways. Following demonstration 

of successful POC in lung cancer, we believe there may be opportunities to explore MGCD265 

and MGCD516 in other solid tumors where these genetic alterations are found.   

Epigenetic program: Spectrum Selective Histone Deacetylase Inhibitor (HDAC) 

Histone acetylation and deacetylation are epigenetic processes that are independent of DNA 

sequence and play vital roles in the regulation of gene expression and tumor formulation. 

Histone acetyltransferases (HATs) are associated with gene transcription (“gene writers”), and 

are counterbalanced by histone deacetylases (HDACs), which are associated with gene 

silencing (“gene erasers”). Through their complementary roles, they regulate the expression of 

other genes involved in cell growth, survival, and differentiation. 

Mirati’s mocetinostat HDAC development program is differentiated from other HDAC inhibitors 

through its spectrum selective profile, and because it is being developed as a targeted oncology 

therapy for patients with specific epigenetic mutations that inactivate the histone 

acetyltransferase genes CREBBP and EP300 – which leads to uncontrolled cell growth. 

Approximately 20% of bladder cancer patients and 25% of DLBCL patients carry inactivating 

mutations of the CREBBP and EP300 genes. Last year, we announced the initiation of two 

single-agent POC clinical studies with mocetinostat. One study addresses bladder cancer and 

the other DLBCL. These studies are underway and we anticipate initial data in 2015. 

 
 
 
 
We are particularly heartened by the opportunity of mocetinostat to treat bladder cancer, as this 

is an area with high unmet need since there are no approved therapies available after initial 

treatment with chemotherapy. The low median survival rate for those with metastatic urothelial 

cancer of the bladder underscores the urgency for the development of new therapies in these 

areas. DLBCL is a particularly aggressive cancer, and about half of diagnosed patients 

experience a relapse or are refractory to first line treatment. A novel, targeted therapy that is 

based on the underlying molecular profile of these cancers could represent a promising new 

treatment option for many patients. 

Looking to the Future 

It is clear that 2014 was a period of tremendous progress for Mirati. We ended the year with 

strong momentum in our genetic and epigenetic programs, and set ourselves on a course to 

accelerate into 2015. In 2015 we anticipate having initial POC data with MGCD265 and 

mocetinostat. The clinical results could set us on a course for potentially initiating registration 

trials by the end of the year. 

With our strategic focus on discovering and developing cancer therapies that address patient 

populations based on their genetic or epigenetic profile, we are well positioned to improve and 

lengthen the lives of patients with cancer, thereby, creating significant value for our 

shareholders. Additionally, we are in a strong financial position to execute on our plans following 

our public equity offering in early 2015 that generated net proceeds of approximately $48 

million.   

We are passionate about targeted oncology research, backed by strong science and the pursuit 

of innovative development strategies. This surely will be a rewarding journey and everyone at 

Mirati is grateful for your continued support. 

Sincerely,  

Charles M. Baum 
President and Chief Executive Officer 

 
 
 
 
 
 
 
 
 
UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
WASHINGTON, D.C. 20549 
___________________________________________ 
FORM 10-K 

(Mark One) 

(cid:2)(cid:3) ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. 

(cid:4)(cid:3) TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. 

For the fiscal year ended December 31, 2014; or 

For the transition period from                      to 

Commission file number: 1-15803 
________________________________________________ 
MIRATI THERAPEUTICS, INC. 
(Exact Name of Registrant as Specified in Its Charter) 
_____________________________________________________ 

Delaware 
(State or other jurisdiction of 
incorporation or organization) 

9363 Towne Centre Drive Suite 200, San Diego, California 
(Address of principal executive offices) 

46-2693615 
(IRS Employer 
Identification No.) 

92121 
(Zip Code) 

Registrant’s telephone number: (858) 332-3410 
Securities registered pursuant to Section 12(b) of the Act: None 
Securities registered pursuant to Section 12(g) of the Act: 
Common Stock, $0.001 par value per share 
(Title of Class) 
________________________________________________ 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  (cid:4)    No  (cid:2) 

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  (cid:4)    No  (cid:2) 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during 
the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for 
the past 90 days.    Yes  (cid:2)    No  (cid:4) 
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to 
be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to 
submit and post such files).    Yes  (cid:2)    No  (cid:4) 
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best 
of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 
10-K.  (cid:4) 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the 
definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one): 

Large accelerated filer 

(cid:4)(cid:3)

Non-accelerated filer 

(cid:4)(Do not check if a smaller reporting company)(cid:3)

Accelerated filer 

Smaller reporting company 

(cid:2)(cid:3)

(cid:4)(cid:3)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  (cid:4)    No  (cid:2) 

The aggregate market value of common stock held by non-affiliates (based on the closing price on the last business day of the registrant’s most recently 
completed second fiscal quarter as reported on the NASDAQ Capital Market) was $174.9 million. All executive officers and directors of the registrant and all persons 
filing a Schedule 13D or Schedule 13G with the Securities and Exchange Commission in respect to registrant’s common stock have been deemed, solely for the 
purpose of the foregoing calculation, to be “affiliates” of the registrant. 

As of March 6, 2015, the registrant had 16,164,311 shares of common stock outstanding. 

Certain information required to be disclosed in Part III of this report is incorporated by reference from the registrant’s definitive Proxy Statement for the 2015 
Annual Meeting of Stockholders, which will be held on May 21, 2015 and which proxy statement will be filed not later than 120 days after the end of the fiscal 
year covered by this report. 

DOCUMENTS INCORPORATED BY REFERENCE 

 
 
 
 
 
 
 
 
Table of Contents 

PART I 

Item 1. 

  Business 

Item 1A.    Risk Factors 

Item 1B.    Unresolved Staff Comments 

Item 2. 

  Properties 

Item 3. 

  Legal Proceedings 

Item 4. 

  Mine Safety Disclosures 

PART II 

Item 5. 

Item 6. 

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities 
  Selected Consolidated Financial Data 

Item 7. 

  Management’s Discussion and Analysis of Financial Condition and Results of Operations 

Item 7A.    Quantitative and Qualitative Disclosures About Market Risk 

Item 8. 

  Financial Statements and Supplementary Data 

Item 9. 

  Changes in and Disagreements With Accountants on Accounting and Financial Disclosure 

Item 9A.    Controls and Procedures 

Item 9B.    Other Information 

Item 10. 

  Directors, Executive Officers and Corporate Governance 

Item 11. 

  Executive Compensation 

PART III 

Item 12. 

  Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 

Item 13. 

  Certain Relationships and Related Transactions, and Director Independence 

Item 14. 

  Principal Accountant Fees and Services 

Item 15. 

  Exhibits and Financial Statement Schedules 

SIGNATURES 

PART IV 

  Page 

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Forward-Looking Statements 

PART I 

This Annual Report on Form 10-K, or this Annual Report, may contain “forward-looking statements” within the meaning 
of the federal securities laws made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. 
Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, 
including those set forth under Part I, Item 1A, “Risk Factors” in this Annual Report. Except as required by law, we assume no 
obligation to update these forward-looking statements, whether as a result of new information, future events or otherwise. These 
statements, which represent our current expectations or beliefs concerning various future events, may contain words such as “may,” 
“will,”  “expect,”  “anticipate,”  “intend,”  “plan,”  “believe,”  “estimate”  or  other  words  indicating  future  results,  though  not  all 
forward-looking statements  necessarily contain these identifying  words. Such statements may  include, but are not limited to, 
statements concerning the following: 

·                   the initiation, cost, timing, progress and results of our research and development activities, preclinical studies and 

future clinical trials; 

·                   our ability to obtain and maintain regulatory approval for our product candidates, and any related restrictions, 

limitations, and/or warnings in the label of any approved product candidate; 

·                   our ability to obtain funding for our operations; 

·                   our plans to research, develop and commercialize our future product candidates; 

·                   our strategic partners’ decisions relating to development and commercialization of product candidates; 

·                   our ability to attract collaborators with development, regulatory and commercialization expertise; 

·                   our ability to obtain and maintain intellectual property protection for our future product candidates; 

·                   the size and growth potential of the markets for our future product candidates, and our ability to serve those 

markets; 

·                   our ability to successfully commercialize our future product candidates; 

·                   the rate and degree of market acceptance of our future product candidates; 

·                   our ability to develop sales and marketing capabilities, whether alone or with potential future collaborators; 

·                   regulatory developments in the United States and foreign countries; 

·                   the performance of our third-party suppliers and manufacturers; 

·                   the success of competing therapies that are or become available; 

·                   our expectations regarding the time during which we will be an emerging growth company under the Jumpstart 

Our Business Startups Act of 2012, or the JOBS Act; 

·                   the loss of key scientific or management personnel; and 

·                   our other future financial results, capital requirements and need for additional financing. 

2 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 1.     Business 

Overview 

BUSINESS 

We are a clinical-stage biopharmaceutical company focused on developing a pipeline of targeted oncology products. We 
focus our development programs on drugs intended to treat specific genetically defined and selected cancer patients with unmet 
needs. Our pipeline consists of three product candidates: MGCD265, MGCD516 and mocetinostat. MGCD265 and MGCD516 are 
orally-bioavailable, spectrum-selective kinase inhibitors  with distinct  target profiles.  Both MGCD265 and MGCD516 are in 
development to treat patients with non-small cell lung cancer, or NSCLC, and other solid tumors. MGCD265 is in Phase 1b clinical 
development and MGCD516 is in the dose escalation phase of Phase 1 clinical development. Mocetinostat is an orally-bioavailable, 
spectrum-selective histone deacetylase, or HDAC, inhibitor currently in Phase 2 development.  Mocetinostat is being developed for 
the second line treatment of patients with bladder cancer and non-hodgkins lymphoma, or NHL, specifically focusing on diffuse 
large B-cell lymphoma, or DLBCL, and follicular lymphoma, or FL.  Selected bladder cancer, DLBCL and FL tumors have loss of 
function and genetic alterations in genes that have been shown to increase their sensitivity of their tumor cells to mocetinostat in 
preclinical models. 

We believe that an increased understanding of the genomic factors that drive tumor cell growth can lead to the development 
of cancer drugs that target these genomic factors, resulting in increased efficacy while reducing side effects. We are leveraging this 
knowledge to develop targeted cancer therapies to address unmet needs in selected cancer patient populations. Our novel kinase 
inhibitors are intended to target specific mutations that drive the growth of cancer or are implicated in cancer drug resistance or 
pathogenic processes such as tumor angiogenesis. Our HDAC inhibitor, mocetinostat, acts through important epigenetic mechanisms 
that are dysregulated in certain cancers. We plan to identify additional opportunities by leveraging our deep scientific understanding 
of molecular drug targets and mechanisms of resistance and potentially in-licensing or internally discovering promising, early-stage 
novel drug candidates. 

Our three clinical stage product candidates are as follows: 

•   MGCD265 is an orally-bioavailable, potent, small molecule kinase inhibitor of MET and Axl receptor tyrosine kinases, or 
RTKs. MGCD265 is in development for the treatment of solid tumors, with an initial focus on NSCLC but including other 
solid tumors including gastroesophageal cancers and squamous cell carcinoma of the head and neck, or HNSCC. In 2014 
we completed development of a new formulation to improve plasma exposure thereby improving the degree of target 
inhibition to levels which we believe can be sufficient to demonstrate single agent clinical activity in patients with genetic 
alterations of MET and Axl. In late 2014 we established the maximum tolerated dose, or MTD, for the new formulation 
and initiated dose expansion cohorts in patients selected for certain genetic driver mutations that activate the MET and Axl 
pathways.  The patient selection strategy based upon these genetic mutations is designed to result in a high response rate 
that could enable an accelerated development pathway.  We anticipate initial data regarding clinical proof of concept by 
mid-2015 and, if positive, to begin a single-arm registration trial in the second half of 2015. 

•   MGCD516 is an orally-bioavailable, potent, small molecule spectrum-selective kinase inhibitor in development for the 
treatment of solid tumors with an emphasis on genetic alterations involving the Trk, RET and DDR RTK families. We plan 
to focus on solid tumors exhibiting genetic alterations or dysregulation of these key drivers of tumor growth, initially in 
NSCLC.  In addition, we plan to evaluate other tumor types where the profile of MGCD516 would suggest clinical benefit. 
An ongoing Phase 1 dose escalation study is designed to identify the optimal biologic dose or MTD and evaluate a cohort 
of patients selected for key driver mutations in Trk, RET and DDR receptor families. Based upon preclinical and early 
clinical information, we believe that we will reach a dose that potently inhibits the targeted genetic alterations in the first 
half of 2015 and initiate dose expansion cohorts in selected patients in mid-2015.  We believe that initial data on clinical 
activity in patients with genetic alterations of Trk, RET or DDR family members could be available in the second half of 
2015. 

•   Mocetinostat is an orally-bioavailable, spectrum-selective HDAC inhibitor in Phase 2 clinical trials in patients with 
bladder cancer, myelodysplastic syndrome, or MDS, and NHL, specifically DLBCL and FL. Patients in the bladder cancer 
and NHL Phase 2 studies are selected for tumors with genetic alteration in two histone acetyl transferase genes, or HATs, 
that regulate histone acetylation and that have been shown to increase the sensitivity of tumor cells to mocetinostat in 
preclinical models.  We are also evaluating mocetinostat for the first line treatment of patients with MDS in combination 
with Vidaza, a hypomethylating agent, or HMA.  We believe that this is the first and only ongoing clinical development 
plan  for  an  HDAC  inhibitor  in  a  genetically  selected  subset  of  patients.   We  have  completed  13  clinical  trials  with 
mocetinostat which enrolled approximately 450 patients with a variety of hematologic malignancies and solid tumors.  We 

3 

 
 
 
 
 
anticipate initial proof of concept clinical data in bladder cancer and DLBCL by mid-2015, which, if positive, could enable 
the initiation of single agent registration trials. 

We were incorporated under the laws of the State of Delaware on April 29, 2013 as Mirati Therapeutics, Inc.  On May 8, 
2013, we entered into a plan of arrangement with MethylGene, Inc., or MethylGene Canada, pursuant to which MethylGene Canada 
became our wholly owned subsidiary and all of its shareholders became proportionate shareholders of ours.   Our website address is 
www.mirati.com. Our website and the information contained on, or that can be accessed through, the website will not be deemed to 
be incorporated by reference in, and are not considered part of, this Annual Report on Form 10-K. Our Annual Reports on Form 
10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed or furnished pursuant to 
Section 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge of the Investors portion of 
our web site at www.mirati.com as soon as reasonably practical after we electronically file such material with, or furnish it to, the 
Securities and Exchange Commission ("SEC"). 

Our Strategy 

Our goal is to be a leading developer of targeted cancer therapies for genetically selected patient populations. The key 

components of our strategy include: 

•   Develop a pipeline of targeted cancer therapies.  We believe that an increased understanding of the genomic factors that 
drive tumor cell growth will lead to the development of cancer drugs with increased efficacy while reducing side effects. 
We are leveraging the prior successful experience of certain members of our management team in the development and 
approval of targeted oncology drugs (crizotinib or Xalkori) to develop targeted cancer therapies to address unmet needs in 
specific cancer populations. Our clinical pipeline is comprised of two novel kinase inhibitors that target specific mutations 
that  drive  cancer  cell  growth  and  an  HDAC  inhibitor  which  is  one  of  the  most  advanced  epigenetic  therapies  in 
development. We plan to identify additional targets by leveraging our deep scientific understanding of molecular drug 
targets and mechanisms of resistance through internal drug discovery activities or potentially in-licensing promising, early-
stage novel drug candidates. 

•   Employ efficient and flexible approaches to accelerate clinical development.  We will pursue indications and select 
specific patient populations in which activity of our product candidates can be assessed in small proof of concept, or POC, 
clinical  trials  leading  to  accelerated  clinical  development.  When  designing  clinical  trials,  we  structure  our  clinical 
development approach to test multiple clinical hypotheses in a single trial and design trials with the flexibility to adapt 
quickly and accelerate once a signal of clinical benefit is observed. We believe our approach may increase the likelihood of 
seeing results early in clinical trials with fewer patients, reducing our clinical development risk and development costs and 
allowing us to potentially accelerate the development of our product pipeline. 

•   Advance our two lead kinase inhibitors.  Kinase inhibitors have significantly improved the care of many cancer patients 
and represent a commercially successful category of targeted cancer therapies with global sales of over $29.1 billion in 
2011, according to BCC Research. We have two internally discovered novel kinase inhibitors in development: MGCD265 
and MGCD516. These product candidates target pathways of high scientific interest, including MET, Axl, Trk, RET, and 
DDR RTK families and are believed to be drivers of tumor growth and responsible for the development of tumor resistance 
to several anti-cancer treatments. MGCD265 is in Phase 1b development and MGCD516 is in Phase 1 development in the 
dose escalation portion of the trial.  In the second half of 2015, we plan to initiate a registration trial for MGCD265 
following POC and initiate dose expansion cohorts for MGCD516 in selected patients once we achieve a dose at which we 
are confident our targets are sufficiently inhibited. 

•   Advance mocetinostat, our HDAC inhibitor.  HDAC inhibitors have been shown to be effective in treating hematologic 
malignancies,  as  evidenced  by  the  approvals  of  Istodax  and  Zolinza.    We  have  completed  13  clinical  trials  with 
mocetinostat in approximately 450 patients. We are focused on the development of mocetinostat in the treatment of bladder 
cancer and NHL, specifically DLBCL and FL, in patients whose tumors have certain genetic alterations in one of two 
genes that regulate histone acetylation, CREBBP and EP300.  Certain alterations in the CREBBP and EP300 genes have 
been shown to increase the sensitivity of tumor cells or cancer models to mocetinostat in preclinical studies.  We are also 
evaluating mocetinostat for the first line treatment of patients with MDS in combination with Vidaza, an HMA. Phase 2 
trials of single agent mocetinostat in bladder cancer and NHL (DLBCL and FL) are ongoing.  We anticipate initial proof of 
concept clinical data in bladder cancer patients and DLBCL patients by the mid-2015. 

•   Leverage partnerships to develop our product candidates.  We plan to collaborate with third parties and partner certain 
rights to our product candidates as a means to accelerate their broader clinical development and maximize their therapeutic 

4 

 
 
 
 
 
 
 
 
and market potential. We plan to retain certain key development and commercialization rights in our partnerships. We 
believe that retaining this strategic flexibility will enable us to maximize shareholder value. 

Product Candidates 

The following chart depicts the current state of our oncology development programs: 

PRODUCT 
CANDIDATE 
MGCD265 

INDICATION 
  Solid Tumors 

TARGETS 
  MET, Axl 

COMMERCIAL 
RIGHTS 

  Mirati: Global 

MGCD516 

  Solid Tumors 

  Trk, RET,DDR 

  Mirati: Global 

STAGE OF DEVELOPMENT AND 
ANTICIPATED MILESTONES 
Initial data from Phase 1b expansion cohorts in 
selected patients in mid-2015. 
Initiate Registration Trial in second half of 
2015. 

Phase 1 dose escalation ongoing. 
Initiate expansion cohorts in the second half of 
2015. 

Mocetinostat 

  Bladder Cancer 
and NHL 
(DLBCL and FL) 

HDACs 
1, 2, 3, 11 

  Taiho: Certain Asian 
Territories 
Mirati: All Other 
Territories 

Phase 2 in bladder cancer ongoing. 
Phase 2 in DLBCL and FL ongoing. 
Initial POC data in bladder in mid-2015. 
Initial POC data in DLBCL in mid-2015. 

Our Targeted Kinase Programs 

Targeted therapies selectively inhibit specific genes or pathways that are inappropriately activated in certain types of cancer 
cells and not in normal tissue, called driver mutations. RTKs are a family of kinases involved in the transmission of signals that 
regulate intercellular processes, including those that control cell growth and cell division. RTKs may be inappropriately activated in 
cancerous  tissues  resulting  in  uncontrolled  tumor  cell  growth.  Aberrant  kinase  function,  caused  by  genetic  mutations,  gene 
amplification, or over-expression, underlies many cancer cell processes, making the kinome an important source for therapeutic 
targets in oncology. Discoveries of specific drivers of disease have led to the development of targeted therapies, or the tailoring of 
therapies to a particular tumor or disease profile. In some cases, these therapies have proven to be more efficacious while having 
fewer side effects than traditional non-targeted therapies, such as chemotherapy, which kill healthy cells along with cancer cells. 
Examples of successful development of oral targeted kinase inhibitors include Novartis AG’s Gleevec, a BCR-ABL kinase inhibitor 
for the treatment of Philadelphia chromosome positive chronic myelogenous leukemia, and GlaxoSmithKline’s Tykerb, a HER2 
kinase inhibitor for the treatment of a subset of breast cancer patients over-expressing the HER2 kinase. Further examples of oral 
targeted kinase inhibitors include Pfizer’s Xalkori and Bosulif and Bristol-Myers Squibb’s Sprycel. We believe that therapies that 
target specific genetic abnormalities in subsets of cancer patients identified through diagnostic tests will result in streamlined clinical 
trials and improved patient outcomes and will be increasingly important in the continued evolution of the treatment of cancer. 

We believe that by selecting patients whose tumors have genetic mutations and alterations in the pathways that are critical 
for tumor growth and are potently inhibited by our drugs, we will increase the potential for clinical benefit. A greater clinical benefit 
in selected patients would increase the likelihood of demonstrating clinical benefit earlier in development, potentially in Phase 1, 
which  may  allow  us  to  move  rapidly  into  registration  trials.   As  a  part  of  our  ongoing  development  activities,  we  are  using 
commercial diagnostic assays as well as assays developed internally for early clinical trials. We are working with external diagnostic 
providers to develop validated companion diagnostics for later stage clinical use and registration to ensure that the diagnostic is 
widely available for commercial use upon approval. 

The clinical and commercial success of leading small molecule kinase inhibitors demonstrates the potential of new targeted 
treatments for cancer. BCC Research data indicates that the global kinase inhibitor market was $29.1 billion in 2011, and is expected 
to reach $40.2 billion by 2016. The following table lists retail sales figures for selected small molecule kinase inhibitors. 

5 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2013 Worldwide Retail Sales Figures of Selected Small Molecule Kinase Inhibitors 

Brand Name 
Gleevec 
Tarceva 
Sutent 
Nexavar 
Sprycel 
Tykerb 
Zelboraf 
Xalkori 

(1)  Source: Evaluate Pharma. 

2013Worldwide Sales(1) 
(in millions) 

$ 
$ 
$ 
$ 
$ 
$ 
$ 
$ 

4,693     
1,445     
1,204     
1,024     
1,280     
324     
382     
282     

Our kinase inhibitor programs in clinical development, MGCD265 and MGCD516, are kinase inhibitors with distinct target 
profiles. These new molecular entities are in development for the treatment of patients with NSCLC and other solid tumors that 
exhibit the mutations and alterations of interest.  MGCD265 and MGCD516 were developed internally and we own all global rights 
to MGCD265 and MGCD516. 

MGCD265 - A Multi-targeted Kinase Inhibitor for Solid Tumors 

MGCD265 Overview 

MGCD265  is  an  orally-bioavailable,  potent,  small  molecule  kinase  inhibitor  of  MET  and  Axl.  MGCD265  is  in 
development for the treatment of patients with solid tumors.  Our initial focus is on patients with NSCLC but we are investigating 
patients with other solid tumors including gastroesophageal cancers and HNSCC. In 2014 we completed development of a new 
formulation to improve plasma exposure.  The new formulation is intended to maximize the degree of MET and Axl target inhibition 
and to increase the likelihood of seeing single agent clinical activity in selected patients.  In late 2014 we established the maximum 
tolerated dose, or MTD, and initiated dose expansion cohorts in patients selected for specific driver mutations which activate the 
MET or Axl pathways.  This patient selection strategy is designed to result in a high response rate that could enable an accelerated 
development pathway.  We anticipate initial data regarding proof of concept in mid-2015 and, if positive, begin a registration trial in 
the second half of 2015. 

Our development strategy for MGCD265 is based on our understanding of the compound’s target inhibition profile and, 
accordingly, our initial focus for this program will be NSCLC although  we intend to also explore other solid tumors such as 
gastroesophageal  and  HNSCC  tumors  where  genetic  alterations  in  MET  or Axl  are  also  known  to  be  present.   We  intend  to 
undertake patient selection using a targeted next generation sequencing assay to identify patients with certain genetic mutations or 
alterations of MET or Axl that result in oncogenic activation and are implicated as drivers of tumor progression. 

MGCD265 Market Overview 

The National Cancer Institute, or NCI, estimates that in 2014, approximately 224,210 patients in the United States were 
diagnosed with lung cancer and 159,260 died due to the disease. Approximately 85% of lung cancers are NSCLCs. The potential 
oncogenic mutations of MET and Axl that we are targeting may exist in up to 8% of NSCLC cases.  At present, the prevalence of the 
genetic alterations of MET and Axl is less well characterized in other solid tumors, however, they are known to occur in other solid 
tumors and we are exploring those additional indications.  Although other tumor types may respond to treatment with MGCD265, 
NSCLC, HNSCC and gastroesophageal cancers are of particular relevance to demonstrate the clinical activity of MGCD265.  Key 
features of these markets are shown in the table below. 

6 

 
 
 
 
 
 
 
 
 
 
 
Estimated Market Size of Certain Cancer Therapies 

Indication 
Lung Cancer 

Head & Neck 
Cancer 

Supporting 
Rationale 

  Genetic alterations of MET and Axl in up to 8% of NSCLC 

  Genetic alterations of MET and Axl in up to 8% of patients 

Gastric Cancer 

  Genetic alterations of MET in up to 6% of patients 

U.S. Annual Patient Incidence 
(United States, Europe and Japan) 
224,210 

42,440 

22,220 

(1)  Source: National Cancer Institute 

Approximately 15% of NSCLC cases have activating EGFR mutations, equating to 28,650 patients each year in the United 
States.  Although tyrosine kinase inhibitors that target EGFR have demonstrated efficacy in treating patients with EGFR mutations, 
tumors eventually become resistant to therapy.  Resistance to EGFR therapy is mediated through mutation and/or overexpression of 
alternative targets and pathways, including MET and Axl in approximately 70% of resistant tumors, or 20,055 patients annually in 
the United States. 

MGCD265 Background 

MGCD265 is a small molecule, spectrum-selective kinase inhibitor that potently inhibits MET and Axl. These targets have 
been shown to play key roles in tumor development, tumor cell survival, therapeutic resistance and blood vessel formation, or 
angiogenesis. MGCD265 is selective for these two targets at clinically achievable dose levels and shows minimal activity against a 
panel of over 300 other kinases. We believe this profile provides the following potential advantages for MGCD265: 

•  

therapeutic action against specific mutations and genetic alterations of MET; 

•  

therapeutic action against a novel target (Axl); 

•   high specificity reduces the risk of side effects from off-target activity; and 

•  

the selection of patients whose tumors exhibit genetic alterations of MET or Axl that may be drivers of tumor growth 
provides an opportunity to demonstrate single agent clinical responses of MGCD265. 

The MET receptor is a member of the RTK protein family that is found on the cell’s surface that, when not properly 
regulated, plays a key role in the growth, survival and metastasis of various types of cancers. The MET target has generated 
significant scientific and pharmaceutical interest because of its direct involvement in tumor cell survival and angiogenesis. MET 
expression is elevated in several major tumor types including NSCLC, gastric cancer, RCC and HCC and is associated with poor 
prognosis. MET activation may also be associated with resistance to EGFR inhibitors such as Tarceva, Iressa and Erbitux. In tumors 
with EGFR mutation or activation, the activation or genetic alteration of MET is implicated as an escape mechanism leading to 
EGFR-inhibitor resistance. Inhibition of MET may result in clinical benefit by blocking the MET-driven escape mechanism used by 
some tumor cells when treated with other targeted inhibitors of the EGFR, such as Tarceva or Iressa. 

Axl is also an RTK, and its expression has been shown to correlate with clinical-stage and lymph node status in NSCLC. 
Axl can be disregulated in certain cancers through increased protein expression or gene rearrangement, resulting in abnormal tumor 
growth and tumor cell survival. Axl has also been linked to resistance to EGFR inhibitors such as Tarceva and Erbitux. Axl is also 
expressed in other tumor types and may be a clinically significant driver in RCC, ovarian, pancreatic and other tumors. 

7 

 
 
 
 
 
   
   
 
 
 
   
   
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
MGCD265 is distinguished from many other small molecule inhibitors of MET due to its potent activity against Axl which 
provides an opportunity against tumors driven by Axl such as NSCLC tumors that exhibit a translocation of Axl that drives tumor 
growth,  thereby  increasing  the  likelihood  that  these  tumors  will  respond  to  MGCD265.    Further,  MET  and  Axl  are  both 
overexpressed and/or genetically altered in tumors that are resistant to EGFR inhibitors such as Tarceva, Iressa and Erbitux.  It is 
estimated that MET is overexpressed in approximately half of EGFR-resistant tumors, and amplified in 5-20% of EGFR-resistant 
tumors.  It is estimated that Axl is overexpressed in approximately 20-30% of EGFR-resistant tumors.  The simultaneous inhibition 
of both MET and Axl pathways may be required for clinical efficacy in patients developing resistance to EGFR inhibitors or for the 
prevention of resistance by combining MGCD265 with an EGFR inhibitor as first line treatment.  Finally, in preclinical studies 
MGCD265 has demonstrated inhibition of tumor cells which express mutant forms of MET that appears to be greater than other 
known small molecule inhibitors of MET. 

The profile of MGCD265 and our clinical development strategy is clearly distinguished from MET antibody antagonists 
(such as MetMab) that inhibit MET pathway signaling primarily by preventing the binding of HGF to MET.  The inhibition of the 
catalytic activity of MET via small molecule strategies like MGCD265 as opposed to inhibition of ligand binding by MET antibody 
antagonists is an important differentiated strategy in disease settings in which MET is activated by ligand-independent mechanisms 
including activating mutations, gene amplification, and/or extreme overexpression.  Our primary focus in clinical development is on 
patients with NSCLC or other solid tumors exhibiting driver mutations in the MET and Axl pathways.  These driver mutations result 
in constitutive activation of the MET or Axl receptors so they become independent of normally tightly regulated growth factor 
signaling. In the case of MET, genetic alterations can result in the activation of MET-dependent signaling independently of binding 
to HGF.  Therefore, patients with these driver mutations would not be responsive to MET antibody antagonists that inhibit HGF 
binding but are more likely to respond to MGCD265, which inhibits signaling irrespective of growth factor binding.  If we are able 
to demonstrate single agent POC in select patients, we also plan to explore the combination of MGCD265 with EGFR inhibitors to 
treat and/or prevent EGFR resistance. 

MGCD265 Preclinical Development 

Our preclinical studies, in a variety of in vivo tumor models, have suggested that MGCD265 is well tolerated at dose levels 
that inhibit MET and Axl and MGCD265 demonstrated tumor regression in experimental cancer  models that exhibit  genetic 
mutations and alterations of interest. 

MGCD265 Clinical Trials 

Multiple Phase 1 clinical trials have been conducted with MGCD265 showing evidence of clinical activity as monotherapy 
as well as in combination studies. While MGCD265 demonstrated antitumor activity as well as MET and Axl inhibition, it did not 
reach optimal plasma concentrations predicted to robustly inhibit MET.  We have developed new formulations of MGCD265 that 
have demonstrated increased plasma exposure and in the second half of 2014 we reached the MTD with the new formulation and 
achieved exposures to reach greater than 90% inhibition of MET mutations, MET amplifications and Axl fusions.  In the fourth 
quarter of 2014 we initiated expansion cohorts which are enrolling patients selected for specific genetic mutations and alterations of 
MET and Axl with initial proof of concept data for expansion cohorts anticipated in mid-2015. 

The original IND for MGCD265 was filed in December 2007 and became effective in January 2008. Three schedules of 
continuous dosing of MGCD265 were evaluated sequentially in the ongoing monotherapy and combination studies: once daily 
(QD), twice daily (BID) and three times daily (TID). MGCD265 has been generally well tolerated at all doses and schedules tested 
to date, both as monotherapy and in combination with either Taxotere or Tarceva. 

To date, 260 patients have been exposed to MGCD265 in multiple clinical trials in a variety of solid tumor types.  To date, 
the most frequent treatment-related adverse events observed were diarrhea, fatigue and nausea.  Other than as noted below, all of 
these trials were conducted with prior formulations of MGCD265 that are no longer actively being developed.  In addition, none of 
those prior trials were conducted in patient populations that were selected for genetic alterations or mutations in MET and Axl that 
we expect are the most likely to respond to treatment with MGCD265, which is our current development focus. 

The historical MGCD265 clinical trials are set forth in the following table. 

8 

 
 
 
 
 
 
 
 
 
Phase 1 Clinical Trial 

  Single Agent Dose Escalation, 21 day cycle 

  Completed  (trial  amended  and  continuing  as 
described under Phase 1b clinical trial below) 

CLINICAL TRIALS EVALUATING MGCD265 

Phase 1b Clinical Trial* 

  Single Agent Expansion Cohort in patients with 
genetic alterations of MET and Axl in NSCLC, 
HNSCC and other solid tumors, 21 day cycle 

  Ongoing 

Phase 1/2 Clinical Trial 

  Combination  with  Erlotinib  or  Docetaxel  in 
Subjects with advanced NSCLC, 21 day cycle 

  Completed 

*trial being conducted with new formulation 

Phase 1b Clinical Trial Evaluating MGCD265 in Solid Tumors (Ongoing) 

MGCD265 is currently in an ongoing Phase 1b clinical study.  In the second half of 2014 we established the MTD of a new 
formulation of MGCD265.  The observed dose limiting toxicities, or DLTs, included one patient who experienced grade 3 fatigue 
and one patient that experienced grade 3 diarrhea.  Clinical pharmacokinetic and pharmacodynamic data and nonclinical projections 
indicate MGCD265 plasma levels consistent with MET and Axl inhibition that we would expect to result in clinical activity.  In the 
fourth quarter of 2014 we initiated the dose expansion portion of the trial and began enrolling patients selected for target alterations 
of interest in MET or Axl.  The trial is ongoing and no data is yet available, however we anticipate initial proof of concept data by 
mid-2015. 

MGCD265 Developmental Initiatives and Objectives 

Since January 2013, we have developed new formulations of MGCD265 designed to increase plasma exposure, improve 
the degree of target inhibition and increase the likelihood of seeing single agent clinical activity. We selected one of the  new 
formulations and reached MTD in the second half of 2014.  We believe the selected formulation and dose will be sufficient to 
achieve exposures to inhibit MET and Axl to a sufficient degree.  In the fourth quarter of 2014 we initiated dose expansion cohorts 
in patients selected for mutations and alterations of MET or Axl that are implicated as drivers of tumor growth and progression. Our 
initial focus  for this program  is NSCLC.  We are also exploring other solid tumors that  also have the genetic  mutations and 
alterations of interest including gastroesophageal and HNSCC. Because the trial is open-label, we anticipate seeing evidence of 
clinical activity from the expansion cohorts in the mid-2015. 

In mid-2015, we also plan to initiate a combination study of MGCD265 with an EGFR inhibitor in solid tumors, with an 

initial focus on NSCLC. 

We believe that by selecting genetic mutations and alterations that are implicated as oncogenic drivers and that are potently 
inhibited by MGCD265 we may increase the likelihood of seeing clinical activity earlier in clinical development. We are currently 
using commercially available diagnostic assays as well as assays developed internally for early clinical use. We are developing 
companion diagnostics in collaboration with diagnostic platform providers that we plan to use for later stage registration trials and 
commercialization, if approved. 

MGCD516 - A Novel Multi-targeted Kinase Inhibitor for Solid Tumors 

MGCD516 is our second orally-bioavailable, potent, small molecule multi-targeted kinase inhibitor.  MGCD516 is a potent 
inhibitor of closely related RTKs including the Trk, RET and DDR kinase families. We plan to focus our initial development efforts 
on solid tumors in which genetic mutations and alterations of Trk, RET, or DDR families are implicated as oncogenic drivers with 
an initial focus on NSCLC.  Genetic alterations in Trk, RET, and DDR account for approximately 4% of NSCLC cases, or 7,640 
patients annually in the U.S.  We also plan to evaluate other tumor types for which the RTK targets of MGCD516 are disregulated. 
We are currently evaluating MGCD516 in a Phase 1 trial and MGCD516 is currently in the dose escalation portion of that trial. 
Once projected clinically active concentrations are achieved, which we anticipate could occur in mid-2015, we plan to initiate 
expansion cohorts in patients selected for certain genetic alterations (driver mutations) that increase the likelihood that their tumors 
will respond to single agent MGCD516. 

MGCD516 has demonstrated oral bioavailability in preclinical studies, inhibited target-dependent tumor cell growth and 
survival, and demonstrated broad spectrum antitumor activity in preclinical cancer models including tumor regression in tumor 
models exhibiting genetic alteration of MGCD516 RTK targets. 

9 

 
 
 
 
 
 
 
 
 
 
 
Mocetinostat - A Spectrum-Selective Oral HDAC Inhibitor for Bladder Cancer, DLBCL and FL Patients with Certain Genetic 
Alterations 

Mocetinostat Overview 

Mocetinostat is an orally-bioavailable, spectrum-selective HDAC inhibitor currently in development for the treatment of 
patients with bladder cancer and NHL, specifically DLBCL and FL, whose tumors have a certain genetic alteration in genes that 
regulate histone acetylation and that have been shown to increase the sensitivity of their tumor cells to mocetinostat in preclinical 
models.  We are also continuing to evaluate mocetinostat for the first line treatment of patients with MDS in combination with 
Vidaza,  an  HMA,  although  our  primary  focus  is  on  bladder  cancer  and  DLBCL.   We  have  completed  13  clinical  trials  with 
mocetinostat which enrolled approximately 450 patients with a variety of hematologic malignancies and solid tumors.  Phase 2 trials 
in bladder cancer, NHL and MDS are ongoing.  The Phase 2 bladder cancer trial is designed to convert to a single-arm registration-
enabling study if the initial proof of concept data is sufficient to support an accelerated approval pathway.  We anticipate initial proof 
of concept data in bladder cancer and DLBCL in mid-2015. 

We believe that the epigenetic mechanisms of HDAC inhibitors may be important in the treatment of certain cancers and 
potentially complementary with other epigenetic mechanisms. Epigenetics is the regulation of gene expression and resulting cellular 
phenotypes through  mechanisms other than primary DNA sequence alterations. The epigenetic regulation of gene expression 
involves the regulation of DNA methylation and modification of certain histones via modulation of acetylation or methylation of 
specific  amino  acid  residues.  Epigenetic  pathways  can  become  dysregulated  during  cancer  progression  through  a  variety  of 
mechanisms, including the  genetic alteration of  molecules that participate in DNA  methylation and  histone  modification.  In 
particular, alterations of two histone acetyl transferase or HAT genes, CREBBP and EP300, are found in 20 to 30% of patients with 
DLBCL or bladder cancers.  CREBBP and EP300 are implicated in the silencing of selected tumor suppressor genes and which 
contribute to tumor growth and progression.  In an evaluation of over 30 mutant cell lines and 20 xenograft models, those with 
CREBBP or EP300 mutations were highly responsive to mocetinostat.  Because the epigenetic regulation of gene expression is 
controlled by both DNA methylation and histone modification, we have focused on developing a patient selection strategy based on 
enrichment of patients exhibiting these genetic alterations. 

Mocetinostat Market Overview 

The potential of HDAC inhibitors for the treatment of certain cancers has been validated by the approval of Zolinza and 
Istodax for the treatment of T-cell lymphoma. Our clinical studies of mocetinostat indicate that it may have promising activity as a 
single agent in bladder cancer and DLBCL as well as activity in MDS in combination with Vidaza.  Mocetinostat single agent 
responses have been seen in patients with NHL, including DLBCL and FL. In addition, responses to combination therapy have been 
seen in patients with MDS and AML. 

Our initial focus for mocetinostat is on the second line treatment of patients with bladder cancer and the second line or later 

treatment of patients with DLBCL, estimated to be approximately 9,780 patients annually in the United States. 

Bladder Cancer.  The NCI reports the United States annual incidence of bladder cancer to be 74,690 patients, of which 
approximately 30%, or 22,400 patients, have metastatic/refractory disease.  It is estimated that approximately 20-30% of these 
metastatic/refractory patients have mutations in either CREBBP or EP300, which are of interest in our development of mocetinostat.  
Therefore, the annual target patient population in the U.S. for mocetinostat in bladder cancer is approximately 4,480 to 6,720 
patients.  Treatment of bladder cancer is a high unmet need as there are no approved drugs in the U.S. for second line treatment of 
bladder cancer. 

DLBCL.  The NCI reports the U.S. annual incidence of NHL to be 70,800 patients of which approximately 30%, or 21,200, 
are DLBCL.  It is estimated that approximately 25% of these DLBCL patients have a mutation in either CREBBP or EP300 which 
are of interest in our development of mocetinostat.  Therefore, the annual target patient population in the U.S. for mocetinostat in 
DLBCL is approximately 5,300.  While there are other approved agents for DLBCL, there is much room for improvement in clinical 
outcomes. Mocetinostat has the potential to be the first genetically targeted therapy for DLBCL. 

MDS.  MDS consists of a group of heterogeneous, clonal hematopoietic stem cell disorders that are characterized by 
abnormal bone marrow and blood cell development. According to NCI, MDS would be diagnosed in more than 10,000 people 
annually in the United States. Utilizing Surveillance Epidemiology and End Results data from NCI, Decision Resources estimates 
the prevalence of MDS to be over 52,000 patients in the United States and over 49,000 patients in the European Union. 

10 

 
 
 
 
 
 
 
 
 
 
Mocetinostat Background 

Histones are protein components of the structural architecture of DNA known as chromatin (chromatin is the material that 
chromosomes are made of, and is comprised of DNA and histone proteins). Local gene expression activity can be controlled through 
epigenetic mechanisms by inducing changes in chromatin conformation through chemical modifications of histones. Acetylated 
histones are associated with a more open configuration of chromatin  that is receptive to gene expression signals. In contrast, 
decreases in histone acetylation result in a  more compact structure  where gene expression is restricted or suppressed. Tumor 
suppressor genes serve to regulate cell growth and cell death, but during oncogenesis these tumor suppressor genes may become 
silenced due to HDAC-dependent decreases in histone acetylation leading to unrestricted growth of tumor cells. HDACs are a 
family of 11 enzymes (the individual HDAC enzymes are referred to as isoforms) that appear to act as a master regulator of the 
expression of genes. HDAC inhibitors modulate inappropriate deacetylation of histones to restore normal acetylation patterns as 
well as tumor suppressor gene expression. Inhibition of HDACs may result in multiple anti-cancer effects such as (1) the inhibition 
of cancer cell proliferation, (2) the induction of apoptosis (cell death) of cancer cells, (3) improved cell cycle regulation,  (4) the 
induction  of  tumor  suppressor  genes,  and  (5) re-establishing  normal  histone  acetylation  activity  in  cells  where  mutations  or 
alterations may cause a loss of normal function. 

We believe that a key differentiating feature of mocetinostat is its spectrum of activity, targeting HDAC isoforms 1, 2, 3 
and 11. We believe that these isoforms, and particularly isoforms 1 and 2, are the most relevant HDAC isoforms in cancer therapy 
and are also the isoforms most potently inhibited by mocetinostat. Compared to other HDAC inhibitors that have a broader spectrum 
of activity, the profile of mocetinostat may allow us to inhibit the targets relevant to cancer more potently and thereby potentially 
demonstrate improved clinical efficacy and reduced side effects. 

Mocetinostat Clinical Development 

Our IND for mocetinostat was submitted in December 2003 and became effective in January 2004. To date, we have 
evaluated mocetinostat as a monotherapy and in combination with other anticancer agents in approximately 450 patients in Phase 1 
and Phase 2 clinical trials with various malignancies, including MDS, HL, NHL (including DLBCL or FL), acute myeloid leukemia, 
or AML, chronic lymphocytic leukemia and chronic myelogenous leukemia, as well as advanced solid tumors. Through these trials, 
the safety and tolerability of mocetinostat as a single agent and in combination has been well characterized. The clinical trials 
showed activity as a single agent in HL and NHL and in combination with Vidaza in MDS and AML.  None of these prior trials were 
conducted in genetically selected patients. 

The historical mocetinostat clinical trials are set forth in the following table. 

CLINICAL TRIALS EVALUATING MOCETINOSTAT 

Phase 1 Clinical Trial 

Phase 2 Monotherapy Clinical Trial 

  Daily dosing regimen (14 days on, 7 days off) 
  Three times weekly (14 days on, 7 days off) 
  Three times weekly (continuously) 
  Twice weekly (continuously) 

  AML/High-risk MDS 
  Relapsed/Refractory NHL (DLBCL, FL) 
  Refractory chronic lymphocytic leukemia 
  Relapsed/Refractory HL 

Phase 1/2 Combination Clinical Trial with Vidaza 

  AML and MDS 

Other Clinical Trials 

  Phase 1/2 clinical trial of Mocetinostat in Combination with 
Gemcitabine 
  Combination of mocetinostat with Vidaza and with Taxotere 

11 

 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
   
 
 
 
 
 
Pericarditis Finding and Clinical Hold 

In July 2008 a prior collaborative partner instituted a voluntary clinical hold to new patient enrollment for mocetinostat, 
which was accepted by the FDA in August 2008. The voluntary clinical hold was put in place in response to an observation of 
pericarditis and pericardial effusion (inflammation of the pericardium, the fibrous sac surrounding the heart, and accumulation of 
fluid around the heart). 

Our complete response to the voluntary clinical hold was accepted by the FDA and the hold was lifted in September 2009. 
Our response included specific guidance for identifying patients at potential risk for, and guidance to manage patients who develop 
pericarditis or pericardial effusions. As a result, new patient enrollment in mocetinostat clinical trials will include both the exclusion 
of  patients  who  are  diagnosed  with  cardiac  abnormalities  prior  to  starting  mocetinostat  therapy  (i.e. myocardial  infarction, 
congestive heart failure and pericardial disease) and patient monitoring by electrocardiogram and echocardiography at baseline and 
while on study. These diagnostic tests are non-invasive and relatively common procedures. 

Since we restarted mocetinostat development in 2013 and implemented screening procedures, we have not observed any 

pericardial effusions or pericarditis in any treatment group. 

Mocetinostat in Lymphoma 

We evaluated the safety and efficacy of single agent mocetinostat in unselected patients with relapsed/refractory DLBCL 
and FL in a trial starting in 2006. Patients continued treatment until disease progression or prohibitive toxicity. A total of 72 patients 
were enrolled. On the basis of intent-to-treat analysis, the objective response rate was 17% (7 of 41 patients) in patients with 
DLBCL and 10% (3 of 31) in patients with FL. Initially, 32 patients began treatment at 110 mg three times weekly (21 with DLBCL 
and 11 with FL), 37 additional patients were treated with a dose of 85 mg three times weekly (20 with DLBCL and 17 with FL) and 
3  FL  patients  were  treated  with  a  dose  of  70  mg  three  times  weekly. The  most  commonly  reported  adverse  events  included 
myelosuppression and fatigue. 

We are evaluating opportunities for further development of mocetinostat for the treatment of patients with lymphoma 
whose tumors exhibit alterations and mutations in the CREBBP and EP300 genes that occur in between 25-30% of DLBCL and FL 
patients.  Based on the single agent responses seen in patients with NHL and preclinical experiments that demonstrate strong single 
agent  activity  in  tumors  that  express  these  genetic  alterations  in  histone  acetylation,  we  believe  that  this  may  be  a  subset  of 
genetically identifiable lymphoma and solid tumor patients more likely to respond to mocetinostat.  A Phase 2 trial is currently 
ongoing designed to select DLBCL and FL patients with CREBBP and EP300 genetic mutations that we believe will make them 
more responsive to treatment with mocetinostat. 

Mocetinostat in Bladder Cancer 

In the spring of 2014, data was published from The Cancer Genome Atlas, or TCGA, indicating for the first time that the 
same defects in histone acetylation that are of interest in DLBCL and FL also occur in bladder cancer.  While the data is still 
emerging, it appears that these alterations exist in 20-25% of bladder cancer patients.  Our Phase 2 trial in patients with bladder 
cancer is ongoing in patients with genetic mutations in CREBBP and EP300 that we believe will make them more responsive to 
treatment with mocetinostat. The Phase 2 study in bladder cancer patients is designed to enable registration if the response rate is 
sufficiently robust. 

Mocetinostat in MDS 

A Phase 2 trial of mocetinostat in combination with Vidaza in MDS in unselected patients is ongoing.  While the study is 
primarily for safety and to confirm the clinical dose, we are exploring a patient selection strategy for MDS using genetic testing 
methods. 

Intellectual Property 

Patents and Proprietary Technology 

Our goal is to obtain, maintain and enforce patent protection wherever appropriate for our product candidates, formulations, 
processes, methods and any other proprietary technologies and operate without infringing on the proprietary rights of other parties, 
both in the United States and in other countries. Our practice is to actively seek to obtain, where appropriate, intellectual property 
protection for our current product candidates and any future product candidates, proprietary information and proprietary technology 
through a combination of patents, protection of proprietary know-how and trade secrets, and contractual arrangements, both in the 

12 

 
 
 
 
 
 
 
 
 
 
 
 
 
United States and abroad. However, patent protection may not afford us with complete protection against competitors who seek to 
circumvent our patents. We also depend upon the skills, knowledge, experience and know-how of our management and research and 
development personnel as well as that of our advisors, consultants and other contractors. To help protect our proprietary know-how 
that is not patentable, we seek to put in place appropriate internal policies for the management of confidential information, and 
require all of our employees, consultants, advisors and other contractors to enter into confidentiality agreements that prohibit the 
disclosure of confidential information and which require disclosure and assignment to us of the ideas, developments, discoveries and 
inventions important to our business. 

We typically file for patents in the United States with counterparts in certain countries in Europe and certain key market 
countries in the rest of the world, thereby covering the major pharmaceutical markets. As of December 31, 2014, we own or co-own 
U.S. patents and patent applications and their foreign counterparts, including 25 issued U.S. patents as reflected in the following 
table: 

Granted and Pending U.S. Patents 

Program 
Kinase 
HDAC 

TOTAL 

Granted 
(United 
States) 

Pending 
(United 
States) 

14  
11  

25  

3   
4   

7   

Kinase - (14 granted U.S. patents; 3 pending U.S. patent applications) 

As of December 31, 2014, we have fourteen issued patents and three pending patent applications in the United States 
covering inhibitor compounds, including MGCD265 and MGCD516, and methods of use of these compounds. Of these issued 
patents, one covers multiple series of kinase inhibitors and protects MGCD265 generically. Another issued patent, which expires no 
earlier than 2026, protects a selection of compounds including MGCD265, as well as methods of inhibiting VEGF and HGF 
receptor signaling, and methods of treating angiogenesis-mediated cell proliferative disease or inhibiting solid tumor growth. Two 
issued patents cover processes of manufacturing kinase inhibitors such as MGCD265 and MGCD516, and synthetic intermediates 
required for the production of these inhibitors. Exclusivity arising from our issued patents for MGCD265 extends to at least 2026, 
including our patents covering the specific composition of matter of MGCD265 (expires 2026, prior to any legal or regulatory 
extensions, including any patent term extension, that may be available under the Hatch Waxman Act) and the generic class of 
compounds to which MGCD265 belongs (expires 2025, prior to legal or regulatory extensions, including any patent term extension, 
that may be available under the Hatch Waxman Act). Another four issued patents cover several distinct classes of compounds. Such 
coverage includes specific claims to MGCD516, generic coverage of the class of compounds to which MGCD516 belongs, as well 
as patents covering methods of use of such compounds. Exclusivity arising from our patent protection for MGCD516 extends to at 
least 2029, prior to legal or regulatory extensions, including any patent term extension that may be available under the Hatch 
Waxman Act. 

Our pending patent applications relating to our kinase inhibitors seek coverage of a broader scope of kinase inhibitors both 
for oncology and for the treatment of ophthalmic diseases. Methods of use of these inhibitors, such as methods of inhibiting VEGF 
and HGF receptor signaling, methods of treating angiogenesis-mediated cell proliferative disease or inhibiting solid tumor growth 
are also being pursued. 

HDAC Program - (11 granted U.S. patents; 4 pending U.S. patent applications) 

Our patent estate for our HDAC program covers multiple series of HDAC inhibitors, including mocetinostat. This group of 
patents includes 11 issued patents and 4 pending patent applications in the United States protecting composition of matter and 
method of use. Two issued patents cover mocetinostat generically and specifically. Exclusivity for mocetinostat extends to 2022 
prior to legal or regulatory extensions, including any patent term extension that may be available under the Hatch Waxman Act. 

In aggregate, these U.S. patents and patent applications cover the following inventions: novel HDAC inhibitors, including 
mocetinostat  (eleven  issued  patents  and  three  patent  applications),  methods  of  inhibiting  HDACs,  methods  for  treating  cell 
proliferative  disease  or  cancer,  specific  methods  for  treating  colon,  lung  and  pancreatic  cancers,  and  methods  for  treating 
polyglutamine expansion diseases (such as Huntington’s disease. One pending application claims pharmaceutical compositions 
comprising a specific HDAC inhibitor and methods of use inhibiting HDACs for treating neurodegenerative disorders. 

13 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Licensing Agreements 

We may enter into license or sub-license agreements when we believe such license is required to pursue a specific program. 

Competition 

Competitors in Oncology - Small Molecule Kinase Inhibitors 

A  large  number  of  kinase  inhibitors  are  currently  in  clinical  trials,  with  many  more  in  the  early  research  stage. 

Biotechnology and pharmaceutical companies are also developing monoclonal antibodies to kinase targets and their ligands. 

Our MGCD265 program is attractively positioned in the pipeline of MET-targeted molecules and is characterized by 
potential advantages including: a unique kinase spectrum including the emerging RTK target Axl; potent inhibition of MET driver 
mutations which are not inhibited by other small molecule inhibitors due to a different mode of binding to the MET molecule; a lack 
of activity against over 300 off-target kinases, supporting a favorable safety profile; and excellent tolerability to date in combination 
with other anti-cancer agents (including chemotherapy), thus optimizing the potential for combination therapy approaches. 

Companies with MET inhibitors believed to be in late preclinical or clinical development include, but are not limited to: 
AbbVie, Inc., Amgen Inc., Exelixis Inc., GlaxoSmithKline PLC, Incyte Corporation, Merck KGaA, Novartis AG, Pfizer Inc., and 
Sanofi S. A. 

Companies  with  Axl  inhibitors  in  clinical  development  include,  but  are  not  limited  to,  Exelixis,  BergenBio,  and 

GlaxoSmithKline PLC. 

Competitors in Oncology - Mocetinostat Competitors 

We believe that a key differentiating feature of mocetinostat is its spectrum of activity covering only isoforms 1, 2, 3 and 
11, which are the most relevant HDAC isoforms in human cancers. Other companies that are developing spectrum-selective HDAC 
inhibitors  include  but  are  not  limited  to  Acetylon  Pharmaceuticals, Inc.,  Chroma  Therapeutics Ltd.,  Shenzen  Chipscreen 
Biosciences Ltd. and Syndax Pharmaceuticals Inc. 

Companies with Pan-HDAC inhibitors, which are HDAC inhibitors that have an effect across a broader range of HDAC 
isoforms and therefore not as selective as molecules like mocetinostat, include but are not limited to: Celgene, Curis Inc., MEI 
Pharma Inc., Merck, Novartis, Pharmacyclics Inc. and others. We expect that these and other companies may continue to pursue 
research and development in relation to HDAC inhibitors. We continue to monitor these and other companies in order to be aware of 
any third party products and/or intellectual property rights relevant to our products. 

Competitors in Oncology - General Competitors 

In addition to companies that have HDAC inhibitors or kinase inhibitors addressing oncology indications, our competition 
also includes hundreds of private and publicly traded companies that operate in the area of oncology but have therapeutics with 
different mechanisms of action. The oncology market in general is highly competitive, with over 1,000 molecules currently in 
clinical development. Other important competitors, in addition to those mentioned above, include: small and large biotechnology 
companies, including but not limited to Amgen, Celgene and Exelixis; and specialty and regional pharmaceutical companies and 
multinational  pharmaceutical  companies,  including  but  not  limited  to  Abbott  Laboratories Inc.,  Astellas  Pharma Inc., 
AstraZeneca plc, Bayer-Schering Pharmaceutical, Boehringer Ingelheim AG, Bristol-Myers Squibb, Eisai Co. Ltd., Eli Lilly and 
Company, F. Hoffmann-LaRoche Ltd., GlaxoSmithKline, Johnson & Johnson, Merck, Novartis, Pfizer, Sanofi S.A., Taiho and 
Takeda Pharmaceutical Co. 

Many companies have filed, and continue to file, patent applications which may or could affect our program if and when 
they issue, either because they protect a product that may compete with our product candidates, or because they protect intellectual 
property rights that are necessary for us to develop and commercialize our product candidates. These companies include, but are not 
limited to: Bristol-Myers Squibb, Compugen Limited, Exelixis, GlaxoSmithKline, Novartis and Pfizer. Since this area is competitive 
and of strong interest to pharmaceutical and biotechnology companies, we expect that these and other companies will continue to 
publish and file patent applications in this space in the future, as well as pursuing research and development programs in this area. 
We continue to monitor these and other companies in order to be aware of any third party products and/or intellectual property rights 
relevant to our product candidates. 

14 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Employees 

As of December 31, 2014, we had 33 employees located in our offices in San Diego. We also utilize the services of 
consultants  on  a  regular  basis.  Twenty  employees  are  engaged  in  product  development  activities  and  13  are  in  support 
administration, including business development.  Our operations in Montreal, Quebec ceased in March 2014 and our operations 
have fully transitioned to San Diego. 

Executive Officers and Directors 

The following table sets forth information about our executive officers, directors and key employee as of December 31, 2014. 

Name 
Charles M. Baum, M.D., Ph.D. 
Mark J. Gergen 
Isan Chen, M.D. 
James Christensen, Ph.D. 
Jamie A. Donadio 
Rodney W. Lappe, Ph.D.(3) 
Michael Grey(1)(3) 
Henry J. Fuchs, M.D.(2)(3) 
Craig Johnson(1)(2) 
William R. Ringo(1)(2) 

  Age 
56 
52 
52 
46 
39 
60 
62 
57 
53 
69 

  Position 
  President and Chief Executive Officer, Director 
  Executive Vice President and Chief Operating Officer 
  Executive Vice President and Chief Medical and Development Officer 
  Senior Vice President and Chief Scientific Officer 
  Vice President, Finance 
  Chairman of the Board 
  Director 
  Director 
  Director 
  Director 

(1)  Member of the Audit Committee. 
(2)  Member of the Compensation Committee. 
(3)  Member of the Nominating and Corporate Governance Committee. 

Executive Officers 

Charles M. Baum, M.D., Ph.D. has served as our President and Chief Executive Officer and member of our Board of 
Directors since November 2012. From June 2003 to September 2012, he was at Pfizer as Senior Vice President for Biotherapeutic 
Clinical Research within Pfizer's Worldwide Research & Development division and as Vice President and Head of Oncology 
Development  and  Chief  Medical  Officer  for  Pfizer's  Biotherapeutics  and  Bioinnovation  Center.  From  2000  to  2003,  he  was 
responsible for the development of several oncology compounds at Schering-Plough Corporation (acquired by Merck). His career 
has included academic and hospital positions at Stanford University and Emory University, as well as positions of increasing 
responsibility within the pharmaceutical industry at SyStemix, Inc. (acquired by Novartis AG), G.D. Searle & Company (acquired 
by Pfizer), Schering-Plough Corporation (acquired by Merck) and Pfizer. Dr. Baum currently serves on the board of directors of 
Array BioPharma.  Dr. Baum received his M.D. and Ph.D. (Immunology) degrees from Washington University School of Medicine 
in St. Louis, Missouri and completed his post-doctoral training at Stanford University. 

Dr. Baum's experience in the pharmaceutical industry provides our Board of Directors with subject matter expertise. In 
addition,  through  his  position  as  Chief  Medical  Officer  for  Pfizer's  Biotherapeutics  and  Bioinnovation  Center,  Dr. Baum  has 
acquired the operational expertise, which we believe qualifies him to serve on our Board of Directors. 

Mark J. Gergen has served as our Executive Vice President and Chief Operations Officer since February 2013. From 
September 2006 to November 2012, he was Senior Vice President, Corporate Development for Amylin Pharmaceuticals, Inc., or 
Amylin. Prior to Amylin, Mr. Gergen was Executive Vice President of CardioNet, Inc. , and he previously served as Chief Financial 
and Development Officer and later Chief Restructuring Officer of Advanced Tissue Sciences, Inc. From August 1994 to June 1999, 
he was Division Counsel at Medtronic, Inc. Mr. Gergen received a B.A. in Business Administration from Minot State University and 
a J.D. from the University of Minnesota Law School. 

Isan Chen, M.D. has served as our Executive Vice President and Chief Medical and Development Officer since September 
2013. Dr. Chen is board certified in Internal medicine, hematology and medical oncology with more than 15 years of experience in 
oncology and clinical trials from first-in-humans through global registrational studies. He has experience in oncology clinical 
development and interactions with regulatory agencies in the United States and Europe. He was most recently the Chief Medical 
Officer of Aragon Pharmaceuticals,  which  was acquired by Johnson & Johnson in July of 2013. At Aragon Pharmaceuticals, 
Dr. Chen was responsible for the clinical development strategy of all the company's programs, including prostate and breast cancer. 
Prior to Aragon Pharmaceuticals, Dr. Chen served as Vice President of tumor strategy in the oncology business unit at Pfizer. In 

15 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
addition he was the clinical lead for Sutent, a multiple kinase inhibitor, for the treatment of RCC, an indication in which the drug 
secured FDA approval in 2006. He was also the clinical lead for the Phase 1 studies of crizotinib and CDK 4/6 inhibitor palbociclib. 
Dr. Chen completed his hematology/oncology fellowship at University of California, San Diego. Before joining Pfizer, Dr. Chen 
practiced medicine as a staff physician at City of Hope Medical Center and later as an assistant professor at the University of Texas, 
M.D. Anderson Cancer Center. 

James Christensen, Ph.D. has served as our Senior Vice President, and Chief Scientific Officer since January 2014 and 
served as our Vice President, Research from June 2013 through January 2014. Prior to joining us, he held various positions at Pfizer 
from 2003 to 2013, the most recent of which was Senior Director of Oncology Precision Medicine in the Oncology Research Unit.  
While Dr. Christensen joined Pfizer in 2003 and his responsibilities there included leading nonclinical research efforts for oncology 
programs including sunitinib  malate research activities and leading  the  nonclinical and translational biology efforts for other 
research and development programs including crizotinib. Dr. Christensen participated as a member of the Cancer Research or 
Oncology Research Unit leadership team from 2005 to 2013. Prior to 2003, Dr Christensen was a Group Leader on the Preclinical 
Research and Exploratory Development team at SUGEN, Inc., which was acquired by Pharmacia Corporation, now owned by 
Pfizer.  Dr. Christensen began his career in 1998 at Warner Lambert, now owned by Pfizer, with research focus in RTK biology and 
RTK pathway biomarker development in the oncology therapeutic area. Dr. Christensen participates on the editorial boards for 
Cancer Research and Molecular Cancer Therapeutics. Dr. Christensen received a Ph.D. in molecular pharmacology from North 
Carolina State University with dissertation research directed toward characterization of mechanisms of apoptosis dysregulation 
during the process of carcinogenesis. 

Jamie A. Donadio has served as our Vice President, Finance since March 2013. Prior to joining us, Mr. Donadio was at 
Amylin Pharmaceuticals from April 2001 through January 2013. From November 2011 to January 2013, Mr. Donadio served as 
Senior Director of Finance at Amylin. From December 2010 to November 2011, he served as Director of Corporate Financial 
Planning and Analysis at Amylin. From March 2007 to December 2010 he served as Director of SEC Reporting and from April 2001 
to March 2007 he held various corporate accounting roles at Amylin. From December 2000 to April 2001, Mr. Donadio was senior 
accountant at Novatel Wireless, Inc. From August 1997 to December 2000, Mr. Donadio was with Ernst & Young LLP, last serving 
as an audit senior. Mr. Donadio holds a B.S. in Accounting from Babson College and is a certified public account (inactive) in the 
State of California. 

Non-Employee Directors 

Henry J. Fuchs, M.D. has served as a member of our Board of Directors since February 2012. Since March 2009, Dr. Fuchs 
has served as the Executive Vice President and Chief Medical Officer of BioMarin Pharmaceutical Inc. From September 2005 to 
December 2008, Dr. Fuchs was Executive Vice President and Chief Medical Officer of Onyx Pharmaceuticals, Inc. From 1996 to 
2005, Dr. Fuchs served in multiple roles of increasing responsibility at Ardea Biosciences, Inc., first as Vice President, Clinical 
Affairs, then as President and Chief Operating Officer, and finally as Chief Executive Officer. From 1987 to 1996, Dr. Fuchs held 
various positions at Genentech Inc. Dr. Fuchs serves on the Board of Directors of Genomics Health, Inc. and was on the Board of 
Directors of Ardea Biosciences, Inc. from 1996 until its acquisition by AstraZeneca PLC in 2012. Dr. Fuchs received a B.A. in 
Biochemical Sciences from Harvard University, and an M.D. from George Washington University. 

We believe that Dr. Fuchs' experience as an executive and his breadth of knowledge and valuable understanding of the 

pharmaceutical industry qualify him to serve on our Board of Directors. 

Michael Grey has served as a member of our Board of Directors since November 2014.  Mr. Grey currently serves as Chief 
Executive Officer and Chairman of Reneo Pharmaceuticals. He recently served as President and Chief Executive Officer of Lumena 
Pharmaceuticals, Inc., a privately-held biotechnology company before it was acquired by Shire. He is also serving as a Venture 
Partner with Pappas Ventures, a life sciences venture capital firm, since January 2010. Between January and September 2009, he 
served as President and Chief Executive Officer of Auspex Pharmaceuticals, Inc., a private biotechnology company. From January 
2005 until its acquisition in August 2008, Mr. Grey was President and Chief Executive Officer of SGX Pharmaceuticals, Inc., a 
public biotechnology company, where he previously served as President from June 2003 to January 2005 and as Chief Business 
Officer from April 2001 until June 2003. Prior to joining SGX Pharmaceuticals, Inc., Mr. Grey acted as President, Chief Executive 
Officer and Board member of Trega Biosciences, Inc., a biotechnology company. From November 1994 to August 1998, Mr. Grey 
was the President of BioChem Therapeutic, Inc., the pharmaceutical operating division of BioChem Pharma, Inc. During 1994, Mr. 
Grey served as President and Chief Operating Officer for Ansan, Inc., a pharmaceutical company. From 1974 to 1993, he served in 
various roles with Glaxo, Inc. and Glaxo Holdings, plc, culminating in the position of Vice President, Corporate Development. Mr. 
Grey is currently a director of Horizon Pharma, Inc., a public pharmaceutical company, and Selventa, Inc., a healthcare company. 
Mr. Grey previously served on the board of directors of two public companies during the past five years: IDM Pharma, Inc. (from 
1999 to 2009) and Achillion Pharmaceuticals, Inc. (from 2001 to 2010). He received a B.Sc. in chemistry from the University of 
Nottingham, United Kingdom. 

16 

 
 
 
 
 
Based on Mr. Grey's experience as an executive in the biopharmaceutical industry and his breadth of knowledge and 

valuable understanding of the pharmaceutical industry qualify him to serve on our Board of Directors. 

Craig Johnson has served as a member of our Board of Directors since September 2013. Mr. Johnson serves on the boards 
of directors for several life science companies.  He is currently a director for Heron Therapeutics, Inc., a NASDAQ-listed specialty 
pharmaceutical company, as  well as  La Jolla Pharmaceutical Company,  a  NASDAQ-listed biopharmaceutical company.  Mr. 
Johnson also served as a past director of Adamis Pharmaceuticals Corporation, a NASDAQ-listed biopharmaceutical company, from 
2011 to 2014, as well as Ardea Biosciences, Inc., a NASDAQ-listed biotechnology company, from 2008 until its sale to AstraZeneca 
PLC in 2012. From 2011 to 2012 he was Chief Financial Officer of PURE Bioscience, Inc., and from 2010 to 2011 he was Senior 
Vice President and Chief Financial Officer of NovaDel Pharma Inc.  Mr. Johnson served as Vice President and Chief Financial 
Officer of TorreyPines Therapeutics, Inc. from 2004 until its sale to Raptor Pharmaceuticals Corp. in 2009, and then as Vice 
President of a wholly-owned subsidiary of Raptor Pharmaceutical Corp. from 2009 to 2010.  He held several positions, including 
Chief Financial Officer and Senior Vice President of Operations, at MitoKor, Inc. from 1994 to 2004.  Prior to 1994, Mr. Johnson 
held senior financial positions with several early-stage technology companies, and also practiced as a Certified Public Accountant 
with Price Waterhouse.  Mr. Johnson received his B.B.A. in accounting from the University of Michigan-Dearborn. 

We believe Mr. Johnson's leadership and experience and skills in accounting and finance qualify him to serve on our Board 

of Directors. 

Rodney Lappe, Ph.D. has served as a member of our Board of Directors since June 2012, and as Chairman of the Board 
since July 2013. Since January 2012, Dr. Lappe has served as the Senior Vice President of Tavistock Life Sciences, a private 
investment firm. From January 2004 to December 2011, Dr. Lappe was Group Senior Vice President, Pfizer Worldwide Research 
and Development and Chief Scientific Officer for CovX in San Diego, California. Dr. Lappe joined Pfizer with the CovX acquisition 
in 2008. From 2000 to 2002, Dr. Lappe served as Vice President for cardiovascular and metabolic diseases at Pharmacia. He was 
also site leader for Pharmacia in St. Louis. Prior to joining Pharmacia, he held positions of increasing responsibility with Wyeth, 
Rorer Central Research, CIBA Geigy and Searle Pharmaceuticals. Dr. Lappe received his B.A. from Blackburn College and his 
Ph.D. in Pharmacology from Indiana University. 

We believe Dr. Lappe's extensive experience managing pharmaceutical and biotech companies bring important strategic 

insight and qualifies him to serve on our Board of Directors. 

William Ringo, has served as a member of our Board of Directors since March 2014.  Mr. Ringo has over 40 years of 
experience in the pharmaceutical and biotechnology sectors. Currently, he serves as a senior advisor with investment bank Barclays 
Capital and also serves as a strategic advisor with Sofinnova Ventures. Previously, Mr. Ringo was senior vice president of strategy 
and business development for Pfizer before his retirement in April 2010. He spent nearly 30 years with Eli Lilly and Company, 
serving in numerous executive roles, including product group president for oncology and critical care, president of internal medicine 
products, president of the infectious disease business unit and vice president of sales and marketing for U.S. pharmaceuticals. He has 
also served as president and CEO of Abgenix, an oncology-focused antibody company that was purchased by Amgen. He currently 
serves on the board of directors of Sangamo BioSciences, Immune Design Corp, Five Prime Therapeutics, Dermira, Assembly 
Biosciences and BioCrossroads, an Indiana initiative and public-private collaboration focused on growing, advancing and investing 
in life sciences. He also recently served on the board of directors for Onyx Pharmaceuticals until its acquisition by Amgen in 2013. 
Mr. Ringo earned a B.S. in business administration and an M.B.A. from the University of Dayton. 

We believe that Mr. Ringo's experience as an executive and his breadth of knowledge and valuable understanding of the 

pharmaceutical industry qualify him to serve on our Board of Directors. 

17 

 
 
 
 
 
 
 
 
 
 
Item 1A.     Risk Factors 

RISK FACTORS 

Except for the historical information contained herein, this annual report on Form 10-K and the information incorporated 
by reference herein contains forward-looking statements that involve risks and uncertainties. These statements include projections 
about our accounting and finances, plans and objectives for the future, future operating and economic performance and other 
statements regarding future performance. These statements are not guarantees of future performance or events. Our actual results 
may differ materially from those discussed here. Factors that could cause or contribute to such differences are described in the 
following  section  as  well  as  those  discussed  in  Part II,  Item 7  entitled  "Management's Discussion  and Analysis  of  Financial 
Condition and Results of Operations," and elsewhere throughout this report and in any other documents incorporated by reference 
herein. There may be additional risks that we do not presently know of or that we currently believe are immaterial which could also 
impair our business and financial position.  We disclaim any obligation to update any forward-looking statement. 

Risks Relating to Our Financial Position and Capital Requirements 

We will require additional financing and may be unable to raise sufficient capital, which could lead us to delay, 

reduce or abandon development programs or commercialization. 

Our operations have consumed substantial amounts of cash since inception. Our research and development expenses were 
$26.1 million, $19.8 million, and $15.1 million for the years ended December 31, 2014, 2013 and 2012, respectively. In February 
2015 we completed a public offering of our common stock that generated estimated net proceeds of $48.2 million. We believe that 
our current cash and cash equivalents and short-term investments together with the estimated net proceeds from the February 2015 
common stock offering will sustain our operations through the third quarter of 2016. Pursuant to our current plans, we do not 
anticipate  initiating  Phase 3  clinical  trials  with  mocetinostat  until  data  from  our  Phase  2  clinical  trials  is  available  and  until 
additional  financing  or  the  establishment  of  a  collaboration  for  late-stage  development.  We  have  based  these  estimates  on 
assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. We will require 
substantial additional capital to pursue additional clinical development for our lead clinical programs, including conducting late-
stage clinical trials, manufacturing clinical supplies and potentially developing other assets in our pipeline, and, if we are successful, 
to  commercialize  any  of  our  current  product  candidates.  If  the  FDA  or  any  foreign  regulatory  agency,  such  as  the  European 
Medicines Agency, or EMA, requires that we perform studies or trials in addition to those that we currently anticipate with respect to 
the development of our product candidates, or repeat studies or trials, our expenses would further increase beyond what we currently 
expect. Any delay resulting from such further or repeat studies or trials could also result in the need for additional financing. We 
may not be able to adequately finance our development programs, which could limit our ability to move our programs forward in a 
timely and satisfactory manner or require us to abandon the programs, any of which would harm our business, financial condition 
and results of operations. Because successful development of our product candidates is uncertain, we are unable to estimate the 
actual funds we will require to complete research and development and commercialize our product candidates. 

If we are unable to obtain funding from equity offerings or debt financings on a timely basis, we may be required to 
(1) seek collaborators for one or more of our product candidates at an earlier stage than otherwise would be desirable or on terms 
that are less favorable than might otherwise be available; (2) relinquish or license on unfavorable terms our rights to technologies or 
product candidates that we otherwise would seek to develop or commercialize ourselves; or (3) significantly curtail one or more of 
our research or development programs or cease operations altogether. 

We are a clinical-stage company with no approved products and no historical product revenue. Consequently, we expect 

that our financial and operating results will vary significantly from period to period. 

We are a clinical-stage company that has incurred losses since its inception and expect to continue to incur substantial losses 
in the foreseeable future. Biopharmaceutical product development is a highly speculative undertaking and involves a substantial 
degree of uncertainty. 

Our actual financial condition and operating results have varied significantly in the past and are expected to continue to 
fluctuate significantly from quarter-to-quarter or year-to-year due to a variety of factors, many of which are beyond our control. 
Factors relating to our business that may contribute to these fluctuations include: 

•  

•  

the success of our clinical trials through all phases of clinical development; 

delays in the commencement, enrollment and timing of clinical trials; 

18 

 
 
 
 
 
 
 
 
 
 
 
•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

our  ability  to  secure  and  maintain  collaborations,  licensing  or  other  arrangements  for  the  future  development  and/or 
commercialization of our product candidates, as well as the terms of those arrangements; 

our ability to obtain, as well as the timeliness of obtaining, additional funding to develop our product candidates; 

the results of clinical trials or marketing applications for product candidates that may compete with our product 
candidates; 

competition from existing products or new products that may receive marketing approval; 

potential side effects of our product candidates that could delay or prevent approval or cause an approved drug to be taken 
off the market; 

any delays in regulatory review and approval of our clinical development plans or product candidates; 

our ability to identify and develop additional product candidates; 

the ability of patients or healthcare providers to obtain coverage or sufficient reimbursement for our products; 

our ability, and the ability of third parties such as Clinical Research Organizations, or CROs, to adhere to clinical study and 
other regulatory requirements; 

the ability of third-party manufacturers to manufacture our product candidates and key  ingredients needed to conduct 
clinical trials and, if approved, successfully commercialize our products; 

the costs to us, and our ability as well as the ability of any third-party collaborators, to obtain, maintain and protect our 
intellectual property rights; 

costs related to and outcomes of potential intellectual property litigation; 

our ability to adequately support future growth; 

our ability to attract and retain key personnel to manage our business effectively; and 

our ability to build our finance infrastructure and, to the extent required, improve our accounting systems and controls. 

Accordingly, the likelihood of our success must be evaluated in light of many potential challenges and variables associated 
with a clinical-stage company, many of which are outside of our control, and past operating or financial results should not be relied 
on as an indication of future results. Fluctuations in our operating and financial results could cause our share price to decline. It is 
possible that in some future periods, our operating results will be above or below the expectations of securities analysts or investors, 
which could also cause our share price to decline. 

We have incurred significant losses since our inception and anticipate that we will continue to incur significant losses 

for the foreseeable future. We have never generated any revenue from product sales and may never be profitable. 

We have derived limited revenue from our research and licensing agreements which has not been sufficient to cover the 
substantial expenses we have incurred in our efforts to develop our product candidates. Consequently, we have accumulated net 
losses since inception in 1995.  Our net loss for the years ended December 31, 2014, 2013, and 2012 were $43.7 million, $52.9 
million, and $20.3 million respectively. As of December 31, 2014, we had an accumulated deficit of $242.1 million. Our prior 
losses, combined with expected future losses, have had and will continue to have an adverse effect on our stockholders' equity and 
working capital. Such losses are expected to increase in the future as we continue the development of our product candidates and 
seek regulatory approval and commercialization for our product candidates. We are unable to predict the extent of any future losses 
or  when  we  will  become  profitable,  if  ever.  Even  if  we  do  achieve  profitability,  we  may  not  be  able  to  sustain  or  increase 
profitability on an ongoing basis. 

We do not anticipate generating revenue from sales of products for the foreseeable future, if ever. If any of our product 
candidates fail in clinical trials or do not gain regulatory approval, or if any of our product candidates, if approved, fail to achieve 
market acceptance, we may never become profitable. If one or more of our product candidates is approved for commercial sale and 
we retain commercial rights, we anticipate incurring significant costs associated with commercializing any such approved product 

19 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
candidate. Therefore, even if we are able to generate revenue from the sale of any approved product, we  may  never become 
profitable. Even if we achieve profitability in the future, we may not be able to sustain profitability in subsequent periods. Our 
ability to generate future revenue from product sales depends heavily on our success in: 

•  

•  

•  

•  

•  

•  

completing development and clinical trial programs for our product candidates; 

entering into collaboration and license agreements; 

seeking and obtaining marketing approvals for any product candidates that successfully complete clinical trials; 

establishing and maintaining supply and manufacturing relationships with third parties; 

successfully commercializing any product candidates for which marketing approval is obtained; and 

successfully establishing a sales force and marketing and distribution infrastructure. 

Raising  additional  funds  through  debt  or  equity  financing  will  be  dilutive  and  raising  funds  through  licensing 

agreements may be dilutive, restrict operations or relinquish proprietary rights. 

To the extent that additional capital is raised through the sale of equity or convertible debt securities, the issuance of those 
securities could result in substantial dilution for our current stockholders and the terms may include liquidation or other preferences 
that adversely affect the rights of our current stockholders. Existing stockholders may not agree with our financing plans or the 
terms of such financings. Moreover, the incurrence of debt financing could result in a substantial portion of our operating cash flow 
being dedicated to the payment of principal and interest on such indebtedness and could impose restrictions on our operations. In 
addition, if we raise additional funds through collaboration and licensing arrangements, it may be necessary to relinquish potentially 
valuable rights to our products or proprietary technologies, or to grant licenses on terms that are not favorable to us. Additional 
funding may not be available to us on acceptable terms, or at all. 

We may incur losses associated with foreign currency fluctuation. 

Our headquarters were previously located in Canada and many of our material contracts were entered into in Canada. A 
significant portion of our expenditures are in foreign currencies, most notably in Canadian dollars; therefore, we are subject to 
foreign currency fluctuations which may, from time to time, impact (positively or negatively) our financial position and results of 
operations. Exchange rates can fluctuate significantly and cannot be easily predicted; thus, we may experience significant shifts in 
currency exchange variances in the future. We maintain bank accounts in both Canadian dollars and U.S. dollars and do not hedge 
our positions. Our functional currency at December 31, 2014 and 2013 was the U.S. dollar.  Prior to January 1, 2013 our functional 
currency was the Canadian dollar. 

As a public company in the United States, we are subject to the Sarbanes-Oxley Act. We can provide no assurance that 

we will, at all times, in the future be able to report that our internal controls over financial reporting are effective. 

Companies that file reports with the Securities and Exchange Commission, or the SEC, including us, are subject to the 
requirements of Section 404 of the Sarbanes-Oxley Act of 2002. Section 404 requires management to establish and maintain a 
system of internal control over financial reporting, and annual reports on Form 10-K filed under the Securities Exchange Act of 
1934, as amended, or the Exchange Act, must contain a report from management assessing the effectiveness of a company’s internal 
control over financial reporting. Ensuring that we have adequate internal financial and accounting controls and procedures in place 
to produce accurate financial statements on a timely basis remains a costly and time-consuming effort that needs to be re-evaluated 
frequently. Failure on our part to have effective internal financial and accounting controls would cause our financial reporting to be 
unreliable, could have a material adverse effect on our business, operating results, and financial condition, and could cause the 
trading price of our common stock to fall dramatically. 

As an “emerging growth company” (as defined in the JOBS Act), we are not required to comply with Section 404(b) which 
requires attestation from our external auditors on our internal control over financial reporting. We are subject to Section 404(a), 
which requires management to provide a report regarding the effectiveness of internal controls. We are required to review all of our 
control processes to align them to the Section 404 requirements. Failure to provide assurance that our financial controls are effective 
could lead to lack of confidence by investors which could lead to a lower share price. When we are no longer an “emerging growth 
company” (as defined in the Exchange Act or the Securities Act of 1933, as amended, or the Securities Act), our independent 
registered public accounting firm will be required to attest to the effectiveness of our internal control over financial reporting. The 
rules governing the standards that must be met for management to assess our internal control over financial reporting are complex 

20 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
and require significant documentation, testing and possible remediation.  To continue complying with the requirements of being a 
reporting company under the Exchange Act,  we may need to further upgrade our systems, including information technology, 
implement additional financial and management controls, reporting systems and procedures, and hire additional accounting and 
finance staff. 

We and our independent registered public accounting firm have identified a material weakness in our internal controls that is 
described in greater detail in Item 9A-Controls and Procedures. We have implemented measures designed to improve our internal 
control over financial reporting that successfully remediated the control deficiencies that led to our material weakness. We cannot 
guarantee that the measures we have taken to date, or any measures we may take in the future, will be sufficient to avoid potential 
future material weaknesses. In addition, our independent registered public accounting firm has never performed an evaluation of our 
internal control over financial reporting in accordance with the provisions of the Sarbanes-Oxley Act because no such evaluation has 
been required. Had our independent registered public accounting firm performed an evaluation of our internal control over financial 
reporting in accordance with the provisions of the Sarbanes-Oxley Act, additional significant deficiencies or material weaknesses 
may have been identified. If we are unable to successfully remediate any significant deficiency or material weakness in our internal 
control over financial reporting, or identify any additional significant deficiencies or material weaknesses that may exist, the 
accuracy and timing of our financial reporting may be adversely affected, we may be unable to maintain compliance with securities 
law requirements regarding timely filing of periodic reports in addition to applicable stock exchange listing requirements, investors 
may lose confidence in our financial reporting, and our stock price may decline as a result. 

We will incur significant increased costs as a result of operating as a U.S. public company and continuing to be a 

Canadian “reporting issuer.” 

Although we de-listed from the TSX effective as of July 26, 2013, we will continue to be subject to Canadian reporting 
obligations until we meet certain prescribed thresholds which would allow us to apply to cease being a Canadian “reporting issuer.” 
We may incur significant additional accounting, reporting and other expenses in order to maintain our listing on The NASDAQ 
Capital Market, and fulfill our obligations as a Canadian “reporting issuer.” As a U.S. listed public company, we incur significant 
additional legal, accounting and other expenses that we did not incur as a company listed on the TSX. Shareholder activism, the 
current political environment and the current high level of government intervention and regulatory reform may lead to substantial 
new regulations and disclosure obligations, which may lead to additional compliance costs and impact the manner in which we 
operate our business in ways we cannot currently anticipate. Our management and other personnel will need to devote a substantial 
amount of time to these compliance initiatives. Moreover, any new regulations or disclosure obligations may increase our legal and 
financial compliance costs and will make some activities more time-consuming and costly. 

We are an emerging growth company and we cannot be certain if the reduced disclosure requirements applicable to 

emerging growth companies will make our common stock less attractive to investors. 

We are an emerging growth company. Under the JOBS Act, emerging growth companies can delay adopting new or revised 
accounting standards until such time as those standards apply to private companies. We have irrevocably elected not to avail 
ourselves of this exemption from new or revised accounting standards and, therefore, will be subject to the same new or revised 
accounting standards as other public companies that are not emerging growth companies. 

For as long as we continue to be an emerging growth company, we intend to take advantage of certain other exemptions 
from various reporting requirements that are applicable to other public companies including, but not limited to, reduced disclosure 
obligations regarding executive compensation in our periodic reports and proxy statements, exemptions from the requirements of 
holding a nonbinding advisory stockholder vote on executive compensation and any golden parachute payments not previously 
approved, exemption from the requirement of auditor attestation in the assessment of our internal control over financial reporting 
and exemption from any requirement that may be adopted by the Public Company Accounting Oversight Board. If we do continue to 
be an emerging growth company, the information that we provide stockholders may be different than what is available with respect 
to other public companies. We cannot predict if investors will find our common stock less attractive because we rely on these 
exemptions. If some investors find our common stock less attractive as a result, there may be a less-active trading market for our 
common stock and our stock price may be more volatile. 

We will remain an emerging growth company until the earliest of (1) the end of the fiscal year in which the market value of 
our common stock that is held by non-affiliates exceeds $700 million as of the end of the second fiscal quarter, (2) the end of the 
fiscal year in which we have total annual gross revenue of $1 billion or more during such fiscal year, (3) the date on which we issue 
more than $1 billion in non-convertible debt in a three-year period, or (4) December 31, 2018. 

Decreased disclosures in our SEC filings due to our status as an emerging growth company may make it harder for investors 

to analyze our results of operations and financial prospects. 

21 

 
 
 
 
 
 
 
 
 
Risks Relating to Our Business and Industry 

Our research and development programs and product candidates are at an early stage of development. As a result we are 

unable to predict if or when we will successfully develop or commercialize our product candidates. 

Our clinical-stage product candidates as well as our other pipeline assets are at an early stage of development and will 
require significant further investment and regulatory approvals prior to commercialization. We currently have no product candidates 
beyond Phase 2 clinical trials. MGCD265 is currently in a Phase 1b clinical trial, mocetinostat is currently in Phase 2 clinical trials 
and  MGCD516  is  in  a  Phase  1  clinical  trial.  Each  of  our  product  candidates  will  require  additional  clinical  development, 
management of clinical, preclinical and manufacturing activities, obtaining regulatory approval, obtaining manufacturing supply, 
building of a commercial organization, substantial investment and significant marketing efforts before we generate any revenues 
from product sales. We are not permitted to market or promote any of our product candidates before we receive regulatory approval 
from the FDA or comparable foreign regulatory authorities, and we may never receive such regulatory approval for any of our 
product  candidates.  In  addition,  some  of  our  product  development  programs  contemplate  the  development  of  companion 
diagnostics. Companion diagnostics are subject to regulation as medical devices and we may be required to obtain marketing 
approval for accompanying companion diagnostics before we may commercialize our product candidates. 

Even if we obtain the required financing or establish a collaboration to enable us to conduct late-stage clinical development 
of our product candidates and pipeline assets, we cannot be certain that such clinical development would be successful, or that we 
will obtain regulatory approval or be able to successfully commercialize any of our product candidates and generate revenue. 
Success in preclinical testing and early clinical trials does not ensure that later clinical trials will be successful, and the clinical trial 
process may fail to demonstrate that our product candidates are safe and effective for their proposed uses. Any such failure could 
cause us to abandon further development of any one or more of our product candidates and may delay development of other product 
candidates. Product candidates in later stages of clinical trials may fail to show the desired safety and efficacy traits despite having 
progressed through preclinical studies and initial clinical trials. Any delay in, or termination of, our clinical trials will delay and 
possibly preclude the filing of any new drug applications, or NDAs, with the FDA and, ultimately, our ability to commercialize our 
product candidates and generate product revenue. 

We have not previously submitted an NDA to the FDA, or similar drug approval filings to comparable foreign authorities, 
for any product candidate, and we cannot be certain that any of our product candidates will receive regulatory approval. Further, our 
product candidates may not receive regulatory approval even if they are successful in clinical trials. If we do not receive regulatory 
approvals for our product candidates, we may not be able to continue our operations. Even if we successfully obtain regulatory 
approvals  to  market  one  or  more  of  our  product  candidates,  our  revenues  will  be  dependent,  in  part,  upon  our  or  our  future 
collaborators’ ability to obtain regulatory approval of the companion diagnostics to be used with our product candidates, if required, 
and upon the size of the markets in the territories for which we gain regulatory approval and have commercial rights. If the markets 
for patient subsets that we are targeting are not as significant as we estimate, we may not generate significant revenues from sales of 
such products, if approved. 

All of our product candidates are subject to extensive regulation, which can be costly and time consuming, cause delays 

or prevent approval of such product candidates for commercialization. 

The clinical development of product candidates is subject to extensive regulation by the FDA in the United States and by 
comparable regulatory authorities in foreign markets. Product development is a very lengthy and expensive process, and its outcome 
is inherently uncertain. The product development timeline can vary significantly based upon the product candidate’s novelty and 
complexity. Regulations are subject to change and regulatory agencies have significant discretion in the approval process. 

Numerous statutes and regulations govern human testing and the manufacture and sale of human therapeutic products in the 
United States, Europe and other countries and regions where we intend to market our products. Such legislation and regulation bears 
upon, among other things, the approval of trial protocols and human testing, the approval of manufacturing facilities, safety of the 
product candidates, testing procedures and controlled research, review and approval of manufacturing, preclinical and clinical data 
prior to marketing approval including adherence to good manufacturing practices, or GMP, during production and storage as well as 
regulation of marketing activities including advertising and labeling. 

In order to obtain regulatory approval for the commercial sale of any of our product candidates, we must demonstrate 
through preclinical studies and clinical trials that the potential product is safe and effective for use in humans for each target 
indication. The failure to adequately demonstrate the safety and efficacy of a product under development could delay or prevent 
regulatory approval of our product candidates. 

22 

 
 
 
 
 
 
 
 
 
 
No assurance can be given that current regulations relating to regulatory approval will not change or become more stringent 
in the United States or foreign markets. Regulatory agencies may also require that additional trials be run in order to provide 
additional information regarding the safety or efficacy of any drug candidates for which we seek regulatory approval. Moreover, any 
regulatory approval of a drug which is eventually obtained may entail limitations on the indicated uses for which that drug may be 
marketed. Furthermore, product approvals may be withdrawn or limited in some way if problems occur following initial marketing 
or if compliance with regulatory standards is not maintained. Regulatory agencies could become more risk adverse to any side 
effects or set higher standards of safety and efficacy prior to reviewing or approving a product. This could result in a product not 
being approved. Any of the foregoing scenarios could materially harm the commercial prospects for our product candidates. 

We may not be successful in establishing development and commercialization collaborations which could adversely 

affect, and potentially prohibit, our ability to develop our product candidates. 

Because  developing  pharmaceutical  products,  conducting  clinical  trials,  obtaining  regulatory  approval,  establishing 
manufacturing  capabilities  and  marketing  approved  products  are  expensive,  we  may  seek  to  enter  into  collaborations  with 
companies that have more resources and experience in order to continue to develop and commercialize our product candidates. We 
also may be required due to financial or scientific constraints to enter into additional collaboration agreements to research and/or to 
develop and commercialize our product candidates. The establishment and realization of such collaborations may be not be possible 
or may be problematic. There can be no assurance that we will be able to establish such additional collaborations on favorable terms, 
if at all, or that our current or future collaborative arrangements will be successful or maintained for any specific product candidate 
or indication. If we are unable to reach successful agreements with suitable collaboration partners for the ongoing development and 
commercialization of our product candidates, we may face increased costs, we may be forced to limit the scope and number of our 
product candidates we can commercially develop or the territories in which we commercialize such product candidates, and we may 
be unable to commercialize products or programs for which a suitable collaboration partner cannot be found. If we fail to achieve 
successful collaborations, our operating results and financial condition will be materially and adversely affected. 

In addition, the terms of any collaboration agreements may place restrictions on our activities with respect to other products, 
including by limiting our ability to grant licenses or develop products with other third parties, or in different indications, diseases or 
geographical locations, or may place additional obligations on us with respect to development or commercialization of our product 
candidates. If we fail to comply with or breach any provision of a collaboration agreement, a collaborator may have the right to 
terminate, in whole or in part, such agreement or to seek damages. 

Some of our collaboration agreements are complex and involve sharing or division of ownership of certain data, know-how 
and  intellectual  property  rights  among  the  various  parties.  Accordingly  our  collaborators  could  interpret  certain  provisions 
differently than we or our other collaborators which could lead to unexpected or inadvertent disputes with collaborators. In addition, 
these agreements might make additional collaborations, partnering or mergers and acquisitions difficult. 

There is no assurance that a collaborator who is acquired by a third party would not attempt to change certain contract 
provisions that could negatively affect our collaboration. The acquiring company may also not accept the terms or assignment of our 
contracts and may seek to terminate the agreements. Any one of our collaborators could breach covenants, restrictions and/or sub-
license agreement provisions leading us into disputes and potential breaches of our agreements with other partners. 

If we or third parties are unable to successfully develop companion diagnostics for our product candidates, or experience 
significant delays in doing so, we may not achieve marketing approval or realize the full commercial potential of such product 
candidates. 

A key part of our development strategy for each of MGCD265, MGCD516 and mocetinostat is to identify patients or types 
of tumors that express specific genetic markers, which will require the use and development of companion diagnostics. We expect 
that the FDA and comparable foreign regulatory authorities will require the regulatory approval of a companion diagnostic as a 
condition to approving these product candidates. We do not have experience or capabilities in developing or commercializing 
diagnostics and plan to rely in large part on third parties to perform these functions. We do not currently have any long-term 
arrangements in place with any third party to develop or commercialize companion diagnostics for any of our product candidates. 

Companion diagnostics are subject to regulation by the FDA and comparable foreign regulatory authorities as medical 
devices  and  will  likely  require  separate  regulatory  approval  prior  to  commercialization.    If  we  or  third  parties  are  unable  to 
successfully develop companion diagnostics for our product candidates, or experience delays in doing so: 

•  

the development of these product candidates may be adversely affected if we are unable to appropriately select patients for 
enrollment in our clinical trials; 

23 

 
 
 
 
 
 
 
 
 
 
•  

•  

these product candidates may not receive  marketing approval if their safe and effective use depends on a companion 
diagnostic; and 

we may not realize the full commercial potential of these product candidates that receive marketing approval if, among 
other reasons, we are unable to appropriately identify patients or types of tumors with the specific genetic alterations 
targeted by these product candidates. 

Even  if  our  product  candidates  and  any  associated  companion  diagnostics  are  approved  for  marketing,  the  need  for 
companion diagnostics may slow or limit adoption of our product candidates. Although we believe genetic testing is becoming more 
prevalent in the diagnosis and treatment of cancer, our product candidates may be perceived negatively compared to alternative 
treatments that do not require the use of companion diagnostics, either due to the additional cost of the companion diagnostic or the 
need to complete additional procedures to identify genetic markers prior to administering our product candidates. 

If any of these events were to occur, our business and growth prospects would be harmed, possibly materially. 

We may not be able to obtain an Special Protocol Assessment ("SPA") prior to initiating Phase 3 clinical trials of 

mocetinostat for MDS. Even if obtained, an SPA would not guarantee any particular outcome from regulatory review. 

If we pursue Phase 3 development of mocetinostat for MDS, we would first plan to submit an SPA to the FDA. The FDA’s 
SPA process creates a written agreement between the sponsoring company and the FDA regarding clinical trial design and other 
clinical trial issues that can be used to support approval of a product candidate. The SPA is intended to provide assurance that if the 
agreed upon clinical trial protocols are followed and the clinical trial endpoints are achieved, the data may serve as the primary basis 
for an efficacy claim in support of an NDA. However, SPA agreements are not a guarantee of an approval of a product candidate or 
any permissible claims about the product candidate. In particular, SPAs are not binding on the FDA if previously unrecognized 
public health concerns arise during the performance of the clinical trial, if other new scientific concerns regarding product candidate 
safety or efficacy arise, or if the sponsoring company fails to comply with the agreed upon clinical trial protocols. We cannot 
guarantee that we will be able to obtain an SPA if we pursue Phase 3 development of mocetinostat for MDS or that an SPA, if 
obtained, would ultimately aid in obtaining regulatory approval. 

We  rely  upon  third-party  contractors  and  service  providers  for  the  execution  of  some  aspects  of  our  development 
programs. Failure of these collaborators to provide services of a suitable quality and within acceptable timeframes may cause the 
delay or failure of our development programs. 

We  outsource  certain  functions,  tests  and  services  to  CROs,  medical  institutions  and  collaborators  and  outsource 
manufacturing to collaborators and/or contract manufacturers, and we rely on third parties for quality assurance, clinical monitoring, 
clinical data management and regulatory expertise. In particular, we rely on CROs to run our clinical trials on our behalf. There is no 
assurance that such individuals or organizations will be able to provide the functions, tests, drug supply or services as agreed upon 
or to acceptable quality standards, and we could suffer significant delays in the development of our products or processes. 

In  some  cases  there  may  be  only  one  or  few  providers  of  such  services,  including  clinical  data  management  or 
manufacturing services. In addition, the cost of such services could increase significantly over time. We rely on third parties as 
mentioned above to enroll qualified patients and conduct, supervise and monitor our clinical trials. Our reliance on these third 
parties and collaborators for clinical development activities reduces our control over these activities, but does not relieve us of our 
regulatory responsibilities, including ensuring that our clinical trials are conducted in accordance with good clinical practices, or 
GCP, regulations and the investigational plan and protocols contained in the regulatory agency applications. In addition, these third 
parties may not complete activities on schedule or may not manufacture compounds under GMP conditions. Preclinical studies may 
not be performed or completed in accordance with good laboratory practices, or GLP, regulatory requirements or our trial design. If 
we or our CROs fail to comply with GCP regulations, the clinical data generated in our clinical trials may be deemed unreliable and 
the FDA, the EMA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving 
any marketing applications. If these third parties or collaborators do not successfully carry out their contractual duties or meet 
expected deadlines, obtaining regulatory approval for manufacturing and commercialization of our product candidates may be 
delayed or prevented. We rely substantially on third-party data managers for our clinical trial data. There is no assurance that these 
third parties will not make errors in the design, management or retention of our data or data systems. There is no assurance that these 
third parties will pass FDA or regulatory audits, which could delay or prohibit regulatory approval. 

Our CROs may also have relationships with other commercial entities, including our competitors, for whom they may also 
be conducting clinical trials or other product development activities, which could harm our competitive position. If any of our 
relationships with these third-party CROs terminate, we may not be able to enter into arrangements with alternative CROs or to do 
so  on  commercially  reasonable  terms.  Further,  switching  or  adding  additional  CROs  involves  additional  cost  and  requires 

24 

 
 
 
 
 
 
 
 
 
management time and attention. In addition, there is a natural transition period when a new CRO commences work. As a result, 
delays  may occur,  which could  materially impact our ability to  meet our desired clinical development timelines. Though  we 
carefully manage our relationships with our CROs, there can be no assurance that we will not encounter challenges or delays in the 
future or that these delays or challenges will not have a material adverse impact on our business, financial condition and prospects. 

The timelines of our clinical trials may be impacted by numerous factors and any delays may adversely affect our ability 

to execute our current business strategy. 

Clinical testing is expensive, difficult to design and implement, can take many years to complete, and is uncertain as to 
outcome. We may experience delays in clinical trials at any stage of development and testing of our product candidates. Our planned 
clinical trials may not begin on time, have an effective design, enroll a sufficient number of subjects, or be completed on schedule, if 
at all. 

Events which may result in a delay or unsuccessful completion of clinical trials include: 

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

•  

inability to raise funding necessary to initiate or continue a trial; 

delays in obtaining regulatory approval to commence a trial; 

delays in reaching agreement with the FDA on final trial design; 

imposition of a clinical hold following an inspection of our clinical trial operations or trial sites by the FDA or other 
regulatory authorities; 

delays in reaching agreement on acceptable terms with prospective CROs and clinical trial sites; 

delays in obtaining required institutional review board approval at each site; 

delays in recruiting suitable patients to participate in a trial; 

delays in having subjects complete participation in a trial or return for post-treatment follow-up; 

delays caused by subjects dropping out of a trial due to side effects or otherwise; 

clinical sites dropping out of a trial to the detriment of enrollment; 

time required to add new clinical sites; and 

delays by our contract manufacturers to produce and deliver a sufficient supply of clinical trial materials. 

For example, due to the targeted indications and patient populations we intend to focus on for development of our product 
candidates, the number of study sites and patient populations available to us may be relatively limited, and therefore enrollment of 
suitable patients to participate in clinical trials for these product candidates may take longer than would be the case if we were 
pursuing broader indications or patient populations.  For example, enrollment may depend on the availability of suitable companion 
diagnostics to identify genetic markers we are targeting and the capability and willingness of clinical sites to conduct genetic 
screening of potential patients. 

If initiation or completion of any of our clinical trials for our product candidates are delayed for any of the above reasons, 
our development costs may increase, our approval process could be delayed, any periods after commercial launch and before 
expiration of patent protection may be reduced and our competitors may have more time to bring products to market before we do. 
Any of these events could impair the commercial potential of our product candidates and could have a material adverse effect on our 
business. 

Our product candidates may cause undesirable side effects or have other properties that could delay or prevent their 
regulatory approval, limit the commercial profile of an approved product label, or result in significant negative consequences 
following marketing approval, if any. 

Undesirable side effects caused by our product candidates could cause us or regulatory authorities to interrupt, delay or halt 
clinical  trials  and  could  result  in  a  more  restrictive  label  or  the  delay  or  denial  of  regulatory  approval  by  the  FDA  or  other 

25 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
comparable foreign authorities. Results of our trials could reveal a high and unacceptable severity and prevalence of side effects. In 
such an event, our trials could be suspended or terminated and the FDA or comparable foreign regulatory authorities could order us 
to cease further development of or deny approval of our product candidates for any or all targeted indications. Treatment-related side 
effects could affect patient recruitment or the ability of enrolled patients to complete the trial, or result in potential product liability 
claims. Any of these occurrences may harm our business, financial condition and prospects significantly. 

Additionally,  if  one  or  more  of  our  product  candidates  receives  marketing  approval,  and  we  or  others  later  identify 
undesirable side effects caused by such products, a number of potentially significant negative consequences could result, including: 

•  

•  

•  

•  

•  

regulatory authorities may withdraw approvals of such product; 

regulatory authorities may require additional warnings on the product label; 

we may be required to create a medication guide outlining the risks of such side effects for distribution to patients; 

we could be sued and held liable for harm caused to patients; and 

our reputation may suffer. 

Any  of  these  events  could  prevent  us  from  achieving  or  maintaining  market  acceptance  of  any  product  candidate,  if 

approved, and could significantly harm our business, results of operations and prospects. 

We are and continue to be subject to stringent government regulations concerning the clinical testing of our products. We 

will also continue to be subject to government regulation of any product that receives regulatory approval. 

Numerous statutes and regulations govern human testing and the manufacture and sale of human therapeutic products in the 
United States and other countries where we intend to market our products. Such legislation and regulation bears upon, among other 
things, the approval of trial protocols and human testing, the approval of manufacturing facilities, testing procedures and controlled 
research, the review and approval of manufacturing, preclinical and clinical data prior to marketing approval, including adherence to 
GMP during production and storage, and marketing activities including advertising and labeling. 

Clinical trials may be delayed or suspended at any time by us or by the FDA or other similar regulatory authorities if it is 
determined at any time that patients may be or are being exposed to unacceptable health risks, including the risk of death, or if 
compounds are not manufactured under acceptable GMP conditions or with acceptable quality. Current regulations relating to 
regulatory approval may change or become more stringent. The agencies may also require additional trials be run in order to provide 
additional information regarding the safety, efficacy or equivalency of any product candidate for which we seek regulatory approval. 

Moreover, any regulatory approval of a drug which is eventually obtained may entail limitations on the indicated uses for 
which that drug may be marketed or on the conditions of approval, or contain requirements for potentially costly post-marketing 
testing, including Phase 4 clinical trials, and surveillance to monitor the safety and efficacy of the product candidate. In addition, if 
the FDA or a comparable  foreign regulatory authority approves any of our product candidates, the  manufacturing processes, 
labeling, packaging, distribution, adverse event reporting, storage, advertising, promotion and recordkeeping for the product will be 
subject  to  extensive  and  ongoing  regulatory  requirements. These  requirements  include  submissions  of  safety  and  other  post-
marketing information and reports, registration, as well as continued compliance with GMPs and GCPs for any clinical trials that we 
conduct post-approval. Furthermore, product approvals may be withdrawn or limited in some way if problems occur following 
initial marketing or if compliance with regulatory standards is not maintained. Similar restrictions are imposed in foreign markets. 
Regulatory agencies could become more risk adverse to any side effects or set higher standards of safety and efficacy prior to 
reviewing or approving a product. This could result in a product not being approved. 

If  we,  or  any  future  marketing  collaborators  or  contract  manufacturers,  fail  to  comply  with  applicable  regulatory 
requirements,  we  may  be  subject  to  sanctions  including  fines,  product  recalls  or  seizures  and  related  publicity  requirements, 
injunctions, total or partial suspension of production, civil penalties, suspension or withdrawals of previously granted regulatory 
approvals,  warning  or  untitled  letters,  refusal  to  approve  pending  applications  for  marketing  approval  of  new  products  or  of 
supplements to approved applications, import or export bans or restrictions, and criminal prosecution and penalties. Any of these 
penalties could delay or prevent the promotion, marketing or sale of our products and product candidates. 

The FDA’s policies, and policies of comparable foreign regulatory authorities, may change and additional government 
regulations may be enacted that could prevent, limit or delay regulatory approval of our product candidates. If we are slow or unable 
to adapt to changes in existing requirements or the adoption of new requirements or policies, or if we are not able to maintain 

26 

 
 
 
 
 
 
 
 
 
 
 
 
 
regulatory compliance, we may lose any marketing approval that we may have obtained, which would adversely affect our business, 
prospects and ability to achieve or sustain profitability. 

We have no experience in clinical or commercial manufacturing and depend on others for the production of our product 
candidates at suitable levels of quality and quantity. Any problems or delays in the manufacture of our products would have a 
negative impact on our ability to successfully execute our development and commercialization strategies. 

We do not currently have nor do we plan to acquire the infrastructure or capability internally to manufacture our clinical 
drug supplies for use in the conduct of our clinical trials, and we lack the resources and the capability to manufacture any of our 
product candidates on a clinical or commercial scale. We rely on collaborators and/or third parties for development, scale-up, 
formulation, optimization, management of clinical trial and commercial scale manufacturing and commercialization. There are no 
assurances we can scale-up, formulate or manufacture any product candidate in sufficient quantities with acceptable specifications 
for the conduct of our clinical trials or for the regulatory agencies to grant approval of such product candidate. We have not yet 
commercialized any products and have no commercial manufacturing experience. To be successful, our products must be properly 
formulated, scalable, stable and safely manufactured in clinical trial and commercial quantities in compliance with GMP and other 
regulatory requirements and at acceptable costs. Should any of our suppliers or our collaborators be unable to supply or be delayed 
in supplying us with sufficient supplies, no assurance can be given that we will be able to find alternative means of supply in a short 
period of time. Should such parties’ operations suffer a material adverse effect, the manufacturing of our products would also be 
adversely affected. Furthermore, key raw materials could become scarce or unavailable. There may be a limited number of third 
parties who can manufacture our products. We may not be able to meet specifications previously established for product candidates 
during scale-up and manufacturing. 

Our reliance on third parties to manufacture our product candidates will expose us and our partners to risks including the 
following, any of which could delay or prevent the commercialization of our products, result in higher costs, or deprive us of 
potential product revenue: 

•  

•  

•  

Contract manufacturers can encounter difficulties in achieving the scale-up, optimization, formulation, volume production of 
a compound as well as maintaining quality control with appropriate quality assurance. They may also experience shortages 
of qualified personnel. Contract manufacturers are required to undergo a satisfactory GMP inspection prior to regulatory 
approval and are obliged to operate in accordance with FDA, International Conference on Harmonisation of Technical 
Requirements for Registration of Pharmaceuticals for Human Use, or ICH, European and other nationally mandated GMP 
regulations and/or guidelines governing manufacturing processes, stability testing, record keeping and quality standards. A 
failure of these contract manufacturers to follow GMP and to document their adherence to such practices or failure of an 
inspection by a regulatory agency may lead to significant delays in the availability of our product candidate materials for 
clinical study, leading to delays in our trials. 

For each of our current product candidates we will initially rely on a limited number of contract manufacturers. Changing 
these  or  identifying  future  manufacturers  may  be  difficult.  Changing  manufacturers  requires  re-validation  of  the 
manufacturing processes and procedures in accordance with FDA, ICH, European and other mandated GMP regulations 
and/or guidelines. Such re-validation may be costly and time-consuming. It may be difficult or impossible for us to quickly 
find replacement manufacturers on acceptable terms, if at all. 

Our contract manufacturers may not perform as agreed or may not remain in the contract manufacturing business for the 
time required to produce, store and distribute our products successfully. 

The successful commercialization of our product candidates, if approved, will depend on achieving market acceptance 

and we may not be able to gain sufficient acceptance to generate significant revenue. 

Even if our product candidates are successfully developed and receive regulatory approval, they may not gain market 
acceptance among physicians, patients, healthcare payors such as private insurers or governments and other funding parties and the 
medical community. The degree of market acceptance for any of our products will depend on a number of factors, including: 

•  

•  

•  

•  

demonstration of the clinical efficacy and safety of our products; 

the prevalence and severity of any adverse side effects; 

limitations or warnings contained in the product’s approved labeling; 

cost-effectiveness and availability of acceptable pricing; 

27 

 
 
 
 
 
 
 
 
 
 
 
 
•  

•  

•  

competitive product profile versus alternative treatment methods and the superiority of alternative treatment or 
therapeutics; 

the effectiveness of marketing and distribution methods and support for the products; and 

coverage and reimbursement policies of government and third-party payors to the extent that our products could receive 
regulatory approval but not be approved for coverage by or receive adequate reimbursement from government and quasi-
government agencies or other third-party payors. 

Disease indications may be small subsets of a disease that could be parsed into smaller and smaller indications as different 
subsets of diseases are defined. This increasingly fine characterization of diseases could have negative consequences; including 
creating an approved indication that is so small as not to have a viable market for us. If future technology allows characterization of 
a disease in a way that is different from the characterization used for large pivotal studies, it may make those studies invalid or 
reduce their usefulness, and may require repeating all or a portion of the studies. Future technology may supply better prognostic 
ability which could reduce the portion of patients projected to need a new therapy. Even after being cleared by regulatory authorities, 
a product may later be shown to be unsafe or not to have its purported effect, thereby preventing its widespread use or requiring 
withdrawal from the market. 

If we fail to obtain coverage and adequate reimbursement for our products, our revenue-generating ability will be 

diminished and there is no assurance that the anticipated market for our products will be sustained. 

We believe that there will be many different applications for products successfully derived from our technologies and that 
the anticipated market for products under development will continue to expand. However, due to competition from existing or new 
products and the yet-to-be established commercial viability of our products, no assurance can be given that these beliefs will prove 
to be correct. Physicians, patients, formularies, payors or the medical community in general may not accept or utilize any products 
that we or our collaborative partners may develop. Other drugs may be approved during our clinical testing which could change the 
accepted treatments for the disease targeted and make our product candidate obsolete. 

Our and our collaborators’ ability to commercialize our products successfully will depend, in part, on the extent to which 
coverage and adequate reimbursement for such products and related treatments will be available from governmental health payor 
programs at the federal and state levels, including Medicare and Medicaid, private health insurers, managed care plans and other 
organizations. No assurance can be given that third-party coverage and adequate reimbursement will be available that will allow us 
to maintain price levels sufficient for the realization of an appropriate return on our investment in product development. 

Coverage and adequate reimbursement from governmental healthcare programs, such as Medicare and Medicaid, and 
private health insurers, managed care plans and other organizations is critical to new product acceptance. Coverage decisions may 
depend upon clinical and economic standards that disfavor new drug products when more established or lower cost therapeutic 
alternatives are already available or subsequently become available. Even if we obtain coverage for our product candidates, the 
resulting reimbursement payment rates might not be adequate or may require co-payments that patients find unacceptably high. 
Patients are unlikely to use our product candidates unless coverage is provided and reimbursement is adequate to cover a significant 
portion of the cost of our product candidates. 

In the United States and in many other countries, pricing and/or profitability of some or all prescription pharmaceuticals and 
biopharmaceuticals  are  subject  to  varying  degrees  of  government  control.  Outside  of  the  United  States,  the  successful 
commercializaton  of  our  products  will  depend  largely  on  obtaining  and  maintaining  government  coverage,  because  in  many 
countries patients are unlikely to use prescription drugs that are not covered by their government healthcare programs. Negotiating 
coverage and reimbursement with governmental authorities can delay commercialization by 12 months or more. Coverage and 
reimbursement policies may adversely affect our ability to sell our products on a profitable basis. In many international markets, 
governments control the prices of prescription pharmaceuticals, including through the implementation of reference pricing, price 
cuts, rebates, revenue-related taxes and profit control, and we expect prices of prescription pharmaceuticals to decline over the life 
of the product or as volumes increase. Healthcare reform and controls on healthcare spending may limit the price we charge for any 
products and the amounts thereof that we can sell. In particular, in the United States, the federal government and private insurers 
have changed and have considered ways to change, the manner in which healthcare services are provided. In March 2010, the 
Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively, 
PPACA, became law in the United States. PPACA substantially changes the way healthcare is financed by both governmental and 
private insurers and significantly affects the healthcare industry. The provisions of PPACA of importance to our product candidates 
include the following: 

28 

 
 
 
 
 
 
 
 
 
 
•  

•  

•  

•  

•  

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•  

•  

•  

•  

an annual, nondeductible fee on any entity that manufactures or imports specified branded prescription drugs and biologic 
agents, apportioned among these entities according to their market share in certain government healthcare programs; 

an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program, to 23.1% 
and 13.0% of the average manufacturer price for most branded and generic drugs, respectively; 

expansion  of  healthcare  fraud  and  abuse  laws,  including  the  False  Claims  Act  and  the  Anti-Kickback  Statute,  new 
government investigative powers, and enhanced penalties for noncompliance; 

a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-sale 
discounts off negotiated prices of applicable brand drugs to eligible beneficiaries during their coverage gap period, as a 
condition for a manufacturer’s outpatient drugs to be covered under Medicare Part D; 

extension of a  manufacturer’s Medicaid rebate liability to covered drugs dispensed to individuals who are enrolled in 
Medicaid managed care organizations; 

expansion of eligibility criteria for Medicaid programs by, among other things, allowing states to offer Medicaid coverage to 
additional individuals and by adding new mandatory eligibility categories for certain individuals with income at or below 
133% of the federal poverty level beginning in 2014, thereby potentially increasing a manufacturer’s Medicaid rebate 
liability; 

expansion of the entities eligible for discounts under the Public Health Service pharmaceutical pricing program; 

new requirements under the federal Open Payments program and its implementing regulations (as described below); 

a new requirement to annually report drug samples that manufacturers and distributors provide to physicians; and 

a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical 
effectiveness research, along with funding for such research. 

In addition, other legislative changes have been proposed and adopted since PPACA was enacted. In August 2011, the 
Budget Control Act of 2011, among other things, created measures for spending reductions by Congress. A Joint Select Committee 
on Deficit Reduction, tasked with recommending a targeted deficit reduction of at least $1.2 trillion for the years 2013 through 2021, 
was unable to reach required goals, thereby triggering the legislation’s automatic reduction to several government programs. These 
changes include aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, which went into effect on 
April 1, 2013 and will stay in effect through 2024 unless additional Congressional action is taken. In January 2013, President Obama 
signed into law the American Taxpayer Relief Act of 2012, which, among other things, further reduced Medicare payments to 
several types of providers and increased the statute of limitations period for the government to recover overpayments to providers 
from three to five years. Moreover, the recently enacted Drug Supply Chain Security Act imposes new obligations on manufacturers 
of pharmaceutical products related to product tracking and tracing. Among the requirements of this new legislation, manufacturers 
will be required to provide certain information regarding the drug products to individuals and entities to which product ownership is 
transferred, label drug  product with a product identifier, and keep certain records regarding the drug product. The transfer of 
information to subsequent product owners by manufacturers will eventually be required to be done electronically. Manufacturers 
will also be required to verify that purchasers of the manufacturers’ products are appropriately licensed. Further, under this new 
legislation, manufactures will have drug product investigation, quarantine, disposition, and notification responsibilities related to 
counterfeit, diverted, stolen, and intentionally adulterated products, as well as products that are the subject of fraudulent transactions 
or which are otherwise unfit for distribution such that they would be reasonably likely to result in serious health consequences or 
death. These new laws may result in additional reductions in Medicare and other healthcare funding, which could have a material 
adverse effect on our customers and accordingly, our financial operations. 

We anticipate that PPACA, as well as other healthcare reform measures that may be adopted in the future, may result in 
more rigorous coverage criteria and additional downward pressure on the reimbursement we may receive for any approved product. 
Moreover, payment methodologies may be subject to changes in healthcare legislation and regulatory initiatives. For example, the 
Middle Class Tax Relief and Job Creation Act of 2012 required the Centers for Medicare & Medicaid Services, or CMS, to reduce 
the Medicare clinical laboratory fee schedule by 2% in 2013, which revised schedule served as a base for 2014 and will be the base 
for future years. Beginning January 1, 2016, there will be major changes to the payment formula under the Medicare Clinical 
Laboratory Fee Schedule, or CLFS. Under the Protecting Access to Medicare Act of 2014, or PAMA, which was signed to law in 
April 2014, clinical laboratories must report laboratory test payment data for each Medicare-covered clinical diagnostic lab test that 
it furnishes during a time period to be defined by future regulations. The reported data must include the payment rate (reflecting all 

29 

 
 
 
 
 
 
 
 
 
 
 
discounts, rebates, coupons and other price concessions) and the volume of each test that was paid by each private payor (including 
health insurance issuers, group health plans, Medicare Advantage plans and Medicaid managed care organizations). Beginning in 
2017, the Medicare payment rate for each clinical diagnostic lab test will be equal to the weighted median amount for the test from 
the most recent data collection period. The payment rate will apply to laboratory tests furnished by a hospital laboratory if the test is 
separately paid under the hospital outpatient prospective payment system. Levels of reimbursement may be impacted by current and 
future  legislation,  regulation  or  reimbursement  policies  of  third-party  payors  in  a  manner  that  may  harm  the  demand  and 
reimbursement available for our products, including our companion diagnostics, which in turn, could harm our future product 
pricing and sales. Any reduction in reimbursement from Medicare and other government programs may result in a similar reduction 
in payments from private payors. The implementation of cost containment measures or other healthcare reforms may prevent us 
from being able to generate revenue, attain profitability or commercialize our products. 

Competition  in  our  targeted  market  area  is  intense  and  this  field  is  characterized  by  rapid  technological  change. 
Therefore  developments  by  competitors  may  substantially  alter  the  predicted  market  or  render  our  product  candidates 
uncompetitive. 

There are hundreds of drugs in clinical development today in the area of oncology therapeutics. We have competitors both in 
the United States and internationally, including major multinational pharmaceutical companies, biotechnology companies and 
universities  and  other  research  institutions.  In  the  oncology  market,  our  major  competitors  include,  but  are  not  limited  to: 
AbbVie, Inc., Amgen Inc., Exelixis Inc., GlaxoSmithKline PLC, Incyte Corporation, Merck KGaA, Novartis AG, Pfizer Inc., and 
Sanofi S. A. among others. 

Many companies have filed, and continue to file, patent applications in oncology which may or could affect our program. 
Some of these patent applications may have already been allowed or issued, and others may issue in the future. These companies 
include, but are not limited to: Bristol-Myers Squibb; Compugen Limited; Exelixis; GlaxoSmithKline; Novartis; and Pfizer. Since 
this area is competitive and of strong interest to pharmaceutical and biotechnology companies, there will likely be additional patent 
applications filed, and additional patents granted, in the future, as well as additional research and development programs expected in 
the future. 

In addition to companies that have HDAC inhibitors or kinase inhibitors addressing oncology indications, our competition 
also includes hundreds of private and publicly traded companies that operate in the area of oncology but have therapeutics with 
different mechanisms of action. The oncology market in general is highly competitive with over 1,000 molecules currently in 
clinical development. 

Developments by others may render our products or technologies non-competitive or obsolete or we may not be able to keep 
pace with technological developments. Our competitors may have developed or may be developing technologies which may be the 
basis for competitive products. Some of these products may prove to be more effective and less costly than the products developed 
or being developed by us. Our competitors may obtain regulatory approval for their products more rapidly than we do which may 
change the standard of care in the indications we are targeting, rendering our technology or products non-competitive or obsolete. 
Others may develop treatments or cures superior to any therapy we are developing or will develop. Moreover, alternate, less toxic 
forms of medical treatment may be developed which may be competitive with our products. 

Many of the organizations which could be considered to be our competitors have substantially more financial and technical 
resources,  more  extensive  discovery  research,  preclinical  research  and  development  capabilities  and  greater  manufacturing, 
marketing, distribution, production and human resources than we do. Many of our current or potential competitors have more 
experience than us in research, preclinical testing and clinical trials, drug commercialization, manufacturing and marketing, and in 
obtaining domestic and foreign regulatory approvals. In addition, failure, unacceptable toxicity, lack of sales or disappointing sales 
or  other  issues  regarding  competitors’  products  or  processes  could  have  a  material  adverse  effect  on  our  product  candidates, 
including our clinical candidates or our lead compounds. Established pharmaceutical companies may invest heavily to accelerate 
discovery and development of novel compounds or to in-license novel compounds that could make our product candidates less 
competitive. In addition, any new product that competes with an approved product must demonstrate compelling advantages in 
efficacy, convenience, tolerability and safety in order to overcome price competition and brand recognition and to be commercially 
successful. Accordingly, our competitors may succeed in obtaining patent protection, receiving FDA, EMA or other regulatory 
approval or discovering, developing and commercializing medicines before we do, which would have a material adverse impact on 
our business. 

30 

 
 
 
 
 
 
 
 
 
 
Even though we have obtained orphan drug designation for mocetinostat for MDS and Diffuse Large B-Cell Lymphoma, 

we may not be able to obtain or maintain the benefits associated with orphan drug status, including market exclusivity. 

Regulatory authorities in some jurisdictions, including the United States and the European Union, may designate drugs for 
relatively small patient populations as orphan drugs. Under the Orphan Drug Act, the FDA may designate a drug as an orphan drug 
if it is intended to treat a rare disease or condition,  which is generally defined as a patient population of fewer than 200,000 
individuals annually in the United States. In June 2014, the FDA granted orphan drug status to mocetinostat for the treatment of 
patients with MDS in the United States, and in August 2014 the FDA granted orphan drug status to mocetinostat for the treatment of 
patients  with  Diffuse  Large  B-Cell  Lymphoma  in  the  United  States.  Generally,  if  a  drug  with  an  orphan  drug  designation 
subsequently receives the first marketing approval for the indication for which it has such designation, the drug may be entitled to a 
period of marketing exclusivity, which precludes the FDA or the EMA from approving another marketing application for the same 
drug for that same indication for that time period. We can provide no assurance that another drug will not receive marketing 
approval prior to our product candidates. The applicable period is seven years in the United States and ten years in the European 
Union. The exclusivity period in the European Union can be reduced to six years if a drug no longer meets the criteria for orphan 
drug designation or if the drug is sufficiently profitable so that market exclusivity is no longer justified. Orphan drug exclusivity 
may be lost if the FDA or EMA determines that the request for designation was materially defective or if the manufacturer is unable 
to assure sufficient quantity of the drug to meet the needs of patients with the rare disease or condition. In addition, even after a drug 
is granted orphan exclusivity and approved, the FDA can subsequently approve another drug containing the same active ingredient 
for the same condition before the expiration of the seven year exclusivity period if the FDA concludes that the later drug is clinically 
superior in that it is shown to be safer, more effective or makes a major contribution to patient care. In the European Union, the 
EMA may deny marketing approval for a product candidate if it determines such product candidate is structurally similar to an 
approved product for the same indication. 

Orphan drug designation does not convey any advantage in, or shorten the duration of, the regulatory review or approval 
process. Also, regulatory approval for any product candidate may be withdrawn, and other product candidates may obtain approval 
before us and receive orphan drug exclusivity, which could block us from entering the market. 

We will not be able to successfully commercialize our product candidates without establishing sales and marketing 

capabilities internally or through collaborators. 

We  currently  have  no  sales  and  marketing  staff.  We  may  not  be  able  to  find  suitable  sales  and  marketing  staff  and 
collaborators for all of our product candidates. We have no prior experience in the marketing, sale and distribution of pharmaceutical 
products and there are significant risks involved in building and managing a sales organization, including our ability to hire, retain 
and incentivize qualified individuals, generate sufficient sales leads, provide adequate training to sales and marketing personnel, and 
effectively manage a geographically dispersed sales and marketing team. Any collaborators may not be adequate or successful or 
could terminate or materially reduce the effort they direct to our products. The development of a marketing and sales capability will 
require significant expenditures, management resources and time. The cost of establishing  such a sales force may exceed any 
potential product revenue, or our marketing and sales efforts may be unsuccessful. If we are unable to develop an internal marketing 
and sales capability in a timely fashion, or at all, or if we are unable to enter into a marketing and sales arrangement with a third 
party on acceptable terms, we may be unable to successfully develop and seek regulatory approval for our product candidates and/or 
effectively market and sell approved products, if any. 

We are subject to competition for our skilled personnel and may experience challenges in identifying and retaining key 

personnel that could impair our ability to conduct our operations effectively. 

Our future success depends on our ability to retain our executive officers and to attract, retain and motivate qualified 
personnel. If  we are not successful in attracting and retaining highly qualified personnel,  we may not be able to successfully 
implement our business strategy. Although we have not experienced problems attracting and retaining highly qualified personnel in 
the recent past, our industry has experienced a high rate of turnover of management personnel in recent years. Our ability to compete 
in  the  highly  competitive  biotechnology  and  pharmaceuticals  industries  depends  upon  our  ability  to  attract  and  retain  highly 
qualified  managerial,  scientific  and  medical  personnel. We  are  highly  dependent  on  our  management,  scientific  and  medical 
personnel, especially Charles M. Baum, M.D., Ph.D., our President and Chief Executive Officer, Mark J. Gergen, our Executive 
Vice President and Chief Operations Officer, Isan Chen, M.D., our Executive Vice President and Chief Medical and Development 
Officer, James Christensen, Ph.D. our Chief Scientific Officer, and Jamie A. Donadio, our Vice President of Finance, whose services 
are critical to the successful implementation of our product candidate acquisition, development and regulatory strategies, as well as 
the management of our financial operations. We are not aware of any present intention of any of these individuals to leave our 
Company. In order to induce valuable employees to continue their employment with us, we have provided stock options that vest 
over time. The value to employees of stock options that vest over time is significantly affected by movements in our stock price that 
are beyond our control, and may at any time be insufficient to counteract more lucrative offers from other companies. 

31 

 
 
 
 
 
 
 
 
Despite our efforts to retain valuable employees, members of our management, scientific and development teams may 
terminate their employment with us at any time, with or without notice. The loss of the services of any of our executive officers or 
other key employees and our inability to find suitable replacements could harm our business, financial condition and prospects. Our 
success also depends on our ability to continue to attract, retain and motivate highly skilled junior, mid-level and senior managers as 
well as junior, mid-level and senior scientific and medical personnel. 

We may also experience growth in the number of our employees and the scope of our operations, especially in clinical 
development. This growth will place a significant strain on our management, operations and financial resources and we may have 
difficulty managing this future potential growth. No assurance can be provided that we will be able to attract new employees to 
assist in our growth. Many of the other pharmaceutical companies that we compete against for qualified personnel have greater 
financial and other resources, different risk profiles and a longer history in the industry than we do. We also may employ consultants 
or part-time and contract employees. There can be no assurance that these individuals are retainable. While we have been able to 
attract and retain skilled and experienced personnel and consultants in the past, no assurance can be given that we will be able to do 
so in the future. 

Our current and future relationships with customers and third-party payors in the United States and elsewhere may be 
subject, directly or indirectly, to applicable anti-kickback, fraud and abuse, false claims, transparency, health information 
privacy and security and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, 
contractual damages, reputational harm, administrative burdens and diminished profits and future earnings. 

As a pharmaceutical company, even though we do not and will not control referrals of healthcare services or bill directly to 
Medicare, Medicaid or other third-party payors, certain federal and state healthcare laws and regulations pertaining to fraud and 
abuse and patients’ rights are and will be applicable to our business. Our current and future arrangements with third-party payors and 
customers may expose us to broadly applicable fraud and abuse and other healthcare laws and regulations, including, without 
limitation, the federal Anti-Kickback Statute and the federal False Claims Act, which may constrain the business or financial 
arrangements and relationships through which we sell, market and distribute any drugs for which we obtain marketing approval. In 
addition, we may be subject to transparency laws and patient privacy regulation by U.S. federal and state governments and by 
governments in foreign jurisdictions in which we conduct our business. The laws that may affect our ability to operate include: 

•  

•  

•  

•  

•  

the federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, 
offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, 
either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which payment 
may be made under federal and state healthcare programs, such as Medicare and Medicaid; 

federal civil and criminal false claims laws and civil monetary penalty laws, including the federal False Claims Act, which 
impose criminal and civil penalties, including civil whistleblower or qui tam actions, against individuals or entities for 
knowingly  presenting,  or  causing  to  be  presented,  to  the  federal  government,  including  the  Medicare  and  Medicaid 
programs, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an 
obligation to pay money to the federal government; 

the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes criminal and civil 
liability for executing a scheme to defraud any healthcare benefit program or making false statements relating to healthcare 
matters; 

HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, and 
their respective implementing regulations, which impose obligations on covered healthcare providers, health plans, and 
healthcare  clearinghouses,  as  well  as  their  business  associates  that  create,  receive,  maintain  or  transmit  individually 
identifiable health information for or on behalf of a covered entity, with respect to safeguarding the privacy, security and 
transmission of individually identifiable health information; 

the federal Open Payments program, which requires manufacturers of drugs, devices, biologics and medical supplies for 
which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program, with specific exceptions, 
to report annually to CMS information related to “payments or other transfers of value” made to physicians, which is 
defined  to  include  doctors,  dentists,  optometrists,  podiatrists  and  chiropractors,  and  teaching  hospitals  and  applicable 
manufacturers and applicable group purchasing organizations to report annually to CMS ownership and investment interests 
held by the physicians and their immediate family members, and contains requirements for manufacturers to submit reports 
to CMS by the 90th day of each calendar year, and disclosure of such information to be made by CMS on a publicly 
available website which began in September 2014; and 

32 

 
 
 
 
 
 
 
 
 
•  

analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, which may apply to 
sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third-
party payors, including private insurers; state and foreign laws that require pharmaceutical companies to comply with the 
pharmaceutical industry’s  voluntary compliance guidelines and the relevant compliance  guidance promulgated by the 
federal government or otherwise restrict payments that may be made to healthcare providers; state and foreign laws that 
require drug manufacturers to report information related to payments and other transfers of value to physicians and other 
healthcare providers or marketing expenditures; and state and foreign laws governing the privacy and security of health 
information in certain circumstances, many of which differ from each other in significant ways and often are not preempted 
by HIPAA, thus complicating compliance efforts. 

Because of the breadth of these laws and the narrowness of available statutory and regulatory exceptions, it is possible that 
some of our business activities could be subject to challenge under one or more of such laws. In addition, recent healthcare reform 
legislation has strengthened these laws. For example, PPACA, among other things, amends the intent requirement of the federal 
Anti-Kickback Statute such that a person or entity no longer needs to have actual knowledge of this statute or specific intent to 
violate it in order to have committed a violation. Moreover, PPACA provides that the government may assert that a claim including 
items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes 
of the False Claims Act. To the extent that any of our product candidates is ultimately sold in countries other than the United States, 
we may be subject to similar laws and regulations in those countries. If we or our operations are found to be in violation of any of 
the laws described above or any other governmental regulations that apply to us, we may be subject to penalties, including civil and 
criminal  penalties,  damages,  fines,  imprisonment,  exclusion  from  participation  in  government  healthcare  programs,  and  the 
curtailment or restructuring of our operations, any of which could have a material adverse effect on our business. If any of  the 
physicians or other healthcare providers or entities with whom we expect to do business, including any of our collaborators, is found 
not to be in compliance with applicable laws, it may be subject to criminal, civil or administrative sanctions, including exclusion 
from participation in government healthcare programs, which could also materially affect our business. 

We may become subject to the risk of product liability claims. 

We face an inherent risk of product liability as a result of the clinical testing of our product candidates and will face an even 
greater  risk  if  we  commercialize  any  products.  Human  therapeutic  products  involve  the  risk  of  product  liability  claims  and 
associated adverse publicity. Currently, the principal risks we face relate to patients in our clinical trials, who may suffer unintended 
consequences. Claims might be made by patients, healthcare providers, pharmaceutical companies or others. For example, we may 
be  sued  if  any  product  we  develop  allegedly  causes  injury  or  is  found  to  be  otherwise  unsuitable  during  product  testing, 
manufacturing, marketing or sale. Any such product liability claims may include allegations of defects in manufacturing, defects in 
design, a failure to warn of dangers inherent in the product, negligence, strict liability and a breach of warranties. Claims could also 
be asserted under state consumer protection laws.  If we cannot successfully defend ourselves against product liability claims, we 
may incur substantial liabilities or be required to limit commercialization of our product candidates, if approved. Even successful 
defense would require significant financial and management resources. Regardless of the merits or eventual outcome, liability 
claims may result in: 

•   decreased demand for our product candidates; 

•  

injury to our reputation; 

•   withdrawal of clinical trial participants; 

•  

initiation of investigations by regulators; 

•  

costs to defend the related litigation; 

•  

a diversion of management’s time and our resources; 

•  

substantial monetary awards to trial participants or patients; 

•   product recalls, withdrawals or labeling, marketing or promotional restrictions; 

•  

loss of revenue from product sales; and 

•  

the inability to commercialize any our product candidates, if approved. 

33 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may not have or be able to obtain or maintain sufficient and affordable insurance coverage, and without sufficient 
coverage any claim brought against us could have a materially adverse effect on our business, financial condition or results of 
operations. We run clinical trials through investigators that could be negligent through no fault of our own and which could affect 
patients, cause potential liability claims against us and result in delayed or stopped clinical trials. We are required in many cases by 
contractual obligations to indemnify collaborators, partners, third-party contractors, clinical investigators and institutions. These 
indemnifications could result in a material impact due to product liability claims against us and/or these groups. We currently carry 
$10 million in product liability insurance,  which  we believe is appropriate for our clinical trials. Although  we  maintain such 
insurance, any claim that may be brought against us could result in a court judgment or settlement in an amount that is not covered, 
in whole or in part, by our insurance or that is in excess of the limits of our insurance coverage. Our insurance policies also have 
various exclusions, and we may be subject to a product liability claim for which we have no coverage. We will have to pay any 
amounts awarded by a court or negotiated in a settlement that exceed our coverage limitations or that are not covered by our 
insurance, and we may not have, or be able to obtain, sufficient capital to pay such amounts. 

Our business involves the controlled use of hazardous materials and as such we are subject to environmental and 
occupational safety laws. Continued compliance with these laws may incur substantial costs and failure to maintain compliance 
could result in liability for damages that may exceed our resources. 

Our preclinical research, manufacturing and development processes involve the controlled use of hazardous and radioactive 
materials. We are subject to federal, local and foreign laws and regulations governing the use, manufacture, storage, handling and 
disposal of such materials and certain waste products. Our operations involve the use of hazardous and flammable materials, 
including  chemicals  and  biological  materials.  Our  operations  also  produce  hazardous  waste  products.  The  risk  of  accidental 
contamination or injury from these materials cannot be completely eliminated. In the event of such an accident, we could be held 
liable for any damages that result, and any such liability could exceed our resources. We may not be adequately insured against this 
type of liability. We may be required to incur significant costs to comply with environmental laws and regulations in the future, and 
our operations, business or assets may be materially adversely affected by current or future environmental laws or regulations. 

We may have to dedicate resources to the settlement of litigation. 

Securities legislation in the United States, Canada and other countries makes it relatively easy for stockholders to sue. This 
could lead to frivolous law suits which could take substantial time, money, resources and attention or force us to settle such claims 
rather than seek adequate judicial remedy or dismissal of such claims. 

If we are required to defend patent infringement actions brought by third parties, or if we sue to protect our own patent 
rights or otherwise to protect our proprietary information and to prevent its disclosure, or if we are involved in other litigation, 
whether as a plaintiff or defendant, we may be required to pay substantial litigation costs and managerial attention may be diverted 
from business operations even if the outcome is in our favor. If  we are required to  defend our patents or trademarks  against 
infringement by third parties, we may be required to pay substantial litigation costs and managerial attention and financial resources 
may be diverted from our research and development operations even if the outcome is in our favor. 

We may be vulnerable to disruption, damage and financial obligation as a result of system failures. 

Despite the implementation of security measures, any of the internal computer systems belonging to us, our collaborators or 
our third party service providers are vulnerable to damage from computer viruses, unauthorized access, natural disasters, terrorism, 
war and telecommunication and electrical failure. Any system failure, accident or security breach that causes interruptions in our 
own, in collaborators’ or in third party service vendors’ operations could result in a material disruption of our drug discovery and 
development programs. In addition, we rely upon third-party contractors and service providers for the hosting, support and/or 
maintenance of some aspects of our computer hardware, computer software and telecommunications systems.  Failure of those 
contractors and service providers to provide systems and services of a suitable quality and within acceptable timeframes may cause 
the  delay  or  failure  of  our  development  programs,  or  loss  of  confidential  or  proprietary  information.   To  the  extent  that  any 
disruption or security breach results in a loss or damage to our data or applications, or inappropriate disclosure of confidential or 
proprietary information, we may incur liability, our drug discovery and development programs may be adversely affected and the 
further development of our product candidates may be delayed. Furthermore, we may incur additional costs to remedy the damages 
caused by these disruptions or security breaches. 

34 

 
 
 
 
 
 
 
 
 
 
 
Risks Relating to Our Intellectual Property 

We may not obtain adequate protection for our product candidates through patents and other intellectual property rights 

and as such our competitive advantage in the marketplace may be compromised. 

Our success depends, in part, on our ability to secure and protect our patents, trade secrets, trademarks and other intellectual 
property rights and to operate without infringing on the proprietary rights of others or having third parties circumvent the rights that 
we own or license. We have filed and are actively pursuing patent applications in the United States, Japan, Europe and other major 
markets  via  the  Patent  Cooperation Treaty  or  directly  in  countries  of  interest.  The  patent  positions  of  healthcare  companies, 
universities and biopharmaceutical companies, including ours, are uncertain and involve complex questions of law and fact for 
which important legal issues may remain unresolved. Therefore, there is no assurance that our pending patent applications will result 
in the issuance of patents or that we will develop additional proprietary products which are patentable. Moreover, patents issued or 
to be issued to us may not provide us with any competitive advantage. Further, if the patent applications we hold or in-license with 
respect to our programs, product candidates and companion diagnostic fail to issue, if their breadth or strength of protection is 
threatened,  or  if  they  fail  to  provide  meaningful  exclusivity  for  our  product  candidates,  it  could  dissuade  companies  from 
collaborating with us to develop product candidates, and threaten our ability to commercialize, future products. 

Our patents may be challenged by third parties at the United States Patent and Trademark Office (USPTO), comparable 
foreign patent offices, or in patent litigation. In addition, it is possible that third parties with products that are very similar to ours 
will circumvent our patents by means of alternate designs or processes or file applications or be granted patents that would block or 
hurt our efforts. 

There are no assurances that our patent counsel, lawyers or advisors have given us correct advice or counsel. Opinions from 
such patent counsel or lawyers may not be correct or may be based on incomplete facts. We cannot be certain that we are the first to 
invent or first to file for patent protection for the inventions covered by pending patent applications and, if we are not, we may be 
subject to priority disputes. We may be required to disclaim part or all of the subject matter and/or term of certain patents or all of 
the subject matter and/or term of certain patent applications. There may be prior art of which we are not aware that may affect the 
validity or enforceability of a patent claim. There also may be prior art of which we are aware, but which we do not believe affects 
the validity or enforceability of a claim, which may, nonetheless, ultimately be found to affect the validity or enforceability of a 
claim. No assurance can be given that if challenged, our patents would be declared by the USPTO, comparable foreign patent offices 
or a court to be valid or enforceable or that even if found valid and enforceable, a competitor’s technology or product would be 
found by a court to infringe our patents. The possibility exists that others will develop products which have the same effect as our 
products on an independent basis which do not infringe our patents or other intellectual property rights, or will design around the 
claims of patents that we have had issued that cover our products. The steps we have taken to protect our intellectual property may 
not prevent the misappropriation of our proprietary information and technologies, particularly in foreign countries where laws or law 
enforcement practices may not protect proprietary rights to the same extent as in the United States, Europe or Japan.  Unauthorized 
disclosure  of  our  proprietary  information  could  also  harm  our  competitive  position.  We  could  also  inadvertently  use  our 
collaborators’ data inappropriately which could lead to liability. We may file patent applications but have claims restricted or we 
may not be able to supply sufficient data to satisfy a patent office to support our claims and, as a result, may not obtain the original 
claims desired or we may receive restricted claims. Alternatively, it is possible that we may not receive any patent protection from 
an application. 

Maintaining our patents and applications requires timely payment of fees and other associated costs in the countries of 
filing, and we could inadvertently abandon a patent or patent application (or trademark or trademark application) due to non-
payment of fees, or as a result of a failure to comply with filing deadlines or other requirements of the prosecution process, resulting 
in the loss of protection of certain intellectual property rights in a certain country. Alternatively, we, our collaborators or our patent 
counsel may take action resulting in a patent or patent application becoming abandoned which may not be able to be reinstated, or if 
reinstated, may suffer patent term adjustments. Any of these outcomes could hurt our ability to gain full patent protection for our 
products. Registered trademarks and/or applications for trademark registrations in the United States that belong to us are subject to 
similar risks as described above for patents and patent applications. 

Many of our collaboration agreements are complex and may call for licensing or cross-licensing of potentially blocking 
patents, know-how or intellectual property. Due to the potential overlap of data, know-how and intellectual property rights there can 
be no assurance that one of our collaborators will not dispute our right to send data or know-how or other intellectual property rights 
to third parties and this may potentially lead to liability or termination of a program or litigation. There are no assurances that the 
actions of our collaborators would not lead to disputes or cause us to default with other collaborators. We cannot be certain that a 
collaborator will not challenge the validity of licensed patents. 

35 

 
 
 
 
 
 
 
 
We cannot be certain that any country’s patent and/or trademark office will not implement new rules which could affect how 
we draft, file, prosecute and/or maintain patents and patent applications, or that certain patent rights and/or trademark rights will be 
granted by governmental authorities in particular foreign countries. We cannot be certain that increasing costs for drafting, filing, 
prosecuting and maintaining patent applications and patents will not restrict our ability to file for patent protection, or to prosecute 
applications through to grant. We may be forced to abandon or return the rights to specific patents due to a lack of financial 
resources. There is no assurance that we could enter into licensing arrangements at a reasonable cost, or develop or obtain alternative 
technology in respect of patents issued to third parties that incidentally cover our products. Any inability to secure such licenses or 
alternative  technology  could  result  in  delays  in  the  introduction  of  some  of  our  products  or  even  lead  to  prohibition  of  the 
development, manufacture or sale of certain products by us. 

We may file applications for trademark registrations in connection with our product candidates in various jurisdictions, 
including the United States. No assurance can be given that any of our trademark applications will be registered in the United States 
or elsewhere, or that the use of any registered or unregistered trademarks will confer a competitive advantage in the marketplace. 
Furthermore, even if we are successful in our trademark registrations, the FDA and regulatory authorities in other countries have 
their own process for drug nomenclature and their own views concerning appropriate proprietary names. No assurance can be given 
that the FDA or any other regulatory authority will approve of any of our trademarks or will not request reconsideration of one of 
our  trademarks  at  some  time  in  the  future.  The  loss,  abandonment,  or  cancellation  of  any  of  our  trademarks  or  trademark 
applications could negatively affect the success of the product candidates to which they relate. 

Moreover, some of our know-how and technology which is not patented or not patentable may constitute trade secrets. 
Therefore, we require our consultants, advisors and collaborators to enter into confidentiality agreements and our employees to enter 
into invention, non-disclosure and non-compete agreements. However, no assurance can be given that such agreements will provide 
for a meaningful protection of our trade secrets, know-how or other proprietary information in the event of any unauthorized use or 
disclosure of information. Furthermore, we cannot provide assurance that any of our employees, consultants, contract personnel or 
collaborators, either accidentally or through willful misconduct, will not cause serious negative impact to our programs and/or our 
strategy. All of our employees have signed confidentiality agreements, but there can be no assurance that they will not inadvertently 
or through their misconduct give trade secrets away. 

Third-party intellectual property infringement claims may result in a reduction in the scope of our patent protection and 
competitive exclusivity with respect to our product candidates. Patent litigation, including defense against third-party intellectual 
property claims, may result in us incurring substantial costs. 

Patent applications which may relate to or affect our business may have been filed by others.  Such patent applications or 
patents resulting therefrom may conflict with our technologies, patents or patent applications, potentially reducing the scope or 
strength of our patent protection, and may ultimately be determined to restrict or prohibit our freedom to operate with respect to our 
product candidates. Such events could cause  us to stop or change the course of our research and development or modify our 
intellectual property strategies. We could also become involved in interference proceedings in connection with one or more of our 
patents  or  patent  applications  to  determine  priority  of  invention,  or  in  post-grant  opposition  proceedings  at  the  USPTO  or 
comparable foreign patent offices. There can be no guarantees that an interference proceeding or defense of a post-grant opposition 
would be successful or that such an outcome could be reversed on appeal. An unfavorable outcome could require us to cease using 
the related technology or to attempt to license rights to it from the prevailing party. Our business could be harmed if the prevailing 
party does not offer us a license on commercially reasonable terms. Our defense of such interference proceedings may fail and, even 
if successful, may result in substantial costs and distract our management and other employees. 

No assurance can be given that our patents, once issued, would be declared by a court to be valid or enforceable, or that we 

would not be found to infringe a competitor’s patent. 

Third parties may assert that we are using their proprietary information without authorization. Third parties may also have or 
obtain patents and may claim that technologies licensed to or used by us infringe their patents. Because patent applications can take 
many years to issue, third parties may have currently pending patent applications which may later result in issued patents that our 
product  candidates  or  companion  diagnostic  may  infringe,  or  which  such  third  parties  claim  are  infringed  by  the  use  of  our 
technologies. If any third-party patents are held by a court of competent jurisdiction to cover any aspect of our product candidates, 
including the formulation or method of use of such product candidate, the holders of any such patents may be able to block our 
ability to commercialize such product candidate unless we obtained a license under the applicable patents, or until such patents 
expire. In any such case, such a license may not be available on commercially reasonable terms or at all. In addition, any legal action 
that seeks damages or an injunction to stop us from carrying on our commercial activities relating to the affected technologies could 
subject us to  monetary liability. Some of our competitors  may be able to sustain  the costs of complex patent litigation  more 
effectively than we can because they have substantially greater resources. 

36 

 
 
 
 
 
 
 
Parties making claims against us for alleged infringement of their intellectual property rights may obtain injunctive or other 
equitable  relief,  which  could  effectively  block  our  ability  to  further  develop  and  commercialize  one  or  more  of  our  product 
candidates.  Defense  of  these  claims,  regardless  of  their  merit,  would  involve  substantial  litigation  expense  and  would  be  a 
substantial diversion of employee resources from our business. In the event of a successful claim of infringement against us, we 
could  be  required  to  redesign  our  infringing  products  or  obtain  a  license  from  such  third  party  to  continue  developing  and 
commercializing our products and technology. However, we  may not be able to obtain any required license on commercially 
reasonable terms, or at all. Even if we are able to obtain a license, it may be non-exclusive, thereby giving our competitors access to 
the same technologies licensed to us. It may be impossible to redesign our products and technology, or it may require substantial 
time and expense, which could force us to cease commercialization of one or more of our product candidates, or some of our 
business operations, which could materially harm our business. In addition, in any such proceeding, we may be required to pay 
substantial damages, including treble damages and attorneys’ fees in the event we are found liable for willful infringement. 

Our intellectual property may be infringed upon by a third party. 

Third parties may infringe one or more of our issued patents or trademarks. We cannot predict if, when or where a third 
party  may  infringe  one  or  more  of  our  issued  patents  or  trademarks.  We  may  attempt  to  invalidate  a  competitor’s  patent  or 
trademark. There is no assurance such action will ultimately be successful and, even if initially successful, it could be overturned 
upon appeal. There is no assurance that we would be successful in a court of law to prove that a third party is infringing one or more 
of our issued patents. Even if we are successful in proving in a court of law that a third party is infringing one or more of our issued 
patents there can be no assurance that we would be successful in halting their infringing activities, for example, through a permanent 
injunction, or that we would be fully or even partially financially compensated for any harm to our business. We may be forced to 
enter into a license or other agreement with the infringing third party at terms less profitable or otherwise less commercially 
acceptable to us than if the license or agreement were negotiated under conditions between those of a willing licensee and a willing 
licensor. We may not become aware of a third party infringer within legal timeframes that would enable us to seek adequate 
compensation, or at all, thereby possibly losing the ability to be compensated for any harm to our business. Such a third-party may 
be operating in a foreign country where the infringer is difficult to locate, where we do not have issued patents and/or the patent 
laws may be more difficult to enforce. Some third-party infringers may be able to sustain the costs of complex patent infringement 
litigation  more  effectively  than  we  can  because  they  have  substantially  greater  resources.  Any  inability  to  stop  third-party 
infringement could result in loss in market share of some of our products or even lead to a delay, reduction and/or inhibition of the 
development, manufacture or sale of certain products by us. There is no assurance that a product produced and sold by a third-party 
infringer  would  meet  our  or  other  regulatory  standards  or  would  be  safe  for  use.  Such  third-party  infringer  products  could 
irreparably harm the reputation of our products thereby resulting in substantial loss in market share and profits. 

Third parties may seek to obtain approval of a generic version of approved products.  Defense against entry of a generic 
product may result in us incurring substantial costs and ultimate failure to prevail against approval of a generic product could 
result in a substantial loss of market share and profits. 

Even if we are successful in obtaining regulatory approval to sell any of our product candidates in one or more countries, we 
cannot  be  certain  that  our  patents  and  other  intellectual  property  rights  will  ultimately  prevent  approval  of  generic  products 
developed and commercialized by third parties.  A generic manufacturer may seek approval of a generic version of any of our 
products in the United States by filing an Abbreviated New Drug Application, or ANDA, with the FDA asserting that our patents are 
invalid and/or unenforceable to maintain market exclusivity for any of our products, if approved.  We cannot predict if, or when, one 
or more generic manufacture may attempt to seek regulatory approval for a generic version of any of our products, if approved.  
There is no assurance that we will ultimately be successful in a court of law to prevent entry of a generic version of any of our 
products and we may incur substantial costs defending our patents and intellectual property rights.  An inability to stop a generic 
manufacturer from selling a generic version of our products could result in a substantial loss of market share and profits or even 
preclude the ability to continue to commercialize any of our products, if approved. 

Risks Related to Our Shares of Common Stock 

Our share price is volatile and may be influenced by numerous factors that are beyond our control. 

A low share price and low market valuation may make it difficult to raise sufficient additional cash due to the significant 
dilution to current stockholders. Market prices for shares of biotechnology and biopharmaceutical companies such as ours are often 
volatile. Factors such as clinical and regulatory developments regarding our products or processes, developments regarding potential 
or future third-party collaborators, announcements of technological innovations, new commercial products, patents, the development 
of proprietary rights by us or by others or any litigation relating to these rights, regulatory actions, general conditions in  the 
biotechnology and pharmaceutical industries, failure to meet analysts’ expectations, publications, financial results or public concern 
over the safety of biopharmaceutical and biotechnological products, economic conditions in the United States and other countries, 

37 

 
 
 
 
 
 
 
terrorism and other factors could have a significant effect on the share price for our shares of common stock. Any setback or delay in 
the clinical development of our programs could result in a significant decrease in our share price. In recent years the stock of other 
biotechnology  and  biopharmaceutical  companies  has  experienced  extreme  price  fluctuations  that  have  been  unrelated  to  the 
operating performance of the affected companies. There can be no assurance that the market price of our shares of common stock 
will  not  experience  significant  fluctuations  in  the  future,  including  fluctuations  that  are  unrelated  to  our  performance. These 
fluctuations may result due to macroeconomic and world events, national or local events, general perception of the biotechnology 
industry or to a lack of liquidity. In addition, other biotechnology companies or our competitors’ programs could have positive or 
negative results that impact their stock prices and their results or experience stock price fluctuations that could have a positive or 
negative impact on our stock price, regardless whether such impact is direct or not. 

Stockholders  may  not  agree  with  our  business,  scientific,  clinical  and  financial  strategy,  including  additional  dilutive 
financings, and may decide to sell their shares or vote against such proposals. Such actions could materially impact our stock price. 
In addition, portfolio managers of funds or large investors can change or change their view on us and decide to sell our shares. These 
actions could have a material impact on our stock price. In order to complete a financing, or for other business reasons, we may elect 
to consolidate our shares of common stock. Investors may not agree with these actions and may sell our shares. We may have little 
or no ability to impact or alter such decisions. 

Our principal stockholders control the majority of our shares, and their actions may significantly influence matters 

submitted to our stockholders for approval and our share price. 

Based on the information available to us, following our common stock offering of 2.6 million shares which completed on 
February 3, 2015, our stockholders and their affiliates who owned more than 5% of our outstanding common stock collectively 
owned approximately 62% of our outstanding common stock. Baker Bros. Advisors, L.L.C., or Baker Brothers, and Tavistock Life 
Sciences Co., or Tavistock, and their affiliates collectively own approximately 36% of our outstanding common stock. In addition, in 
conjunction with certain financing transactions, we granted to Baker Brothers and Tavistock each the right to nominate a member of 
our Board of Directors and the right to appoint an observer on our Board of Directors. Collectively Baker Brothers and Tavistock 
may have significant influence over matters submitted to our stockholders for approval, including the election  and removal of 
directors and the approval of any merger, consolidation, or sale of all or substantially all of our assets. Furthermore, as a thinly 
traded stock, if Baker Brothers, Tavistock or any of other of our major stockholders determine to exit from the industry or from their 
holdings in us, for whatever reason, the impact on our share price could be detrimental over a prolonged period of time. 

Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity 
incentive plans, could result in additional dilution of the percentage ownership of our stockholders and could cause our stock 
price to fall. 

We expect that significant additional capital will be needed in the future to continue our planned operations. To the extent 
we raise additional capital by issuing equity securities, our stockholders may experience substantial dilution. We may sell common 
stock, convertible securities or other equity securities in one or more transactions at prices and in a manner we determine from time 
to time. If we sell common stock, convertible securities or other equity securities in more than one transaction, investors may be 
materially diluted by subsequent sales. These sales may also result in material dilution to our  existing stockholders, and new 
investors could gain rights superior to our existing stockholders. 

Pursuant to our 2013 Equity Incentive Plan, or the 2013 Plan, and our 2013 Employee Stock Purchase Plan, or the ESPP, our 
management is authorized to grant stock options and other equity-based awards to our employees, directors and consultants. Any 
increase  in  the  number  of  shares  outstanding  as  a  result  of  the  exercise  of  outstanding  options,  the  vesting  or  settlement  of 
outstanding stock awards, or the purchase of shares pursuant to the ESPP will cause our stockholders to experience additional 
dilution, which could cause our stock price to fall. 

Our ability to use our U.S. net operating loss carryforwards and certain other tax attributes may be limited. 

Under  Section 382  of  the  Internal  Revenue  Code  of  1986,  as  amended,  or  the  Code,  if  a  corporation  undergoes  an 
“ownership change,” generally defined as a greater than 50% change (by value) in its equity ownership over a three year period, the 
corporation’s ability to use its pre-change U.S. net operating loss carryforwards, or NOLs, and other pre-change U.S. tax attributes 
(such as research tax credits) to offset its post-change income may be limited. We may experience ownership changes in the future 
as a result of subsequent shifts in our stock ownership. As a result, if we earn net taxable income, our ability to use our pre-change 
U.S. net operating loss carryforwards to offset U.S. federal taxable income may be subject to limitations, which could potentially 
result in increased future tax liability to us. In addition, at the state level, there may be periods during which the use of NOLs is 
suspended or otherwise limited, which could accelerate or permanently increase state taxes owed. 

38 

 
 
 
 
 
 
 
 
 
Because  we  do  not  anticipate  paying  any  cash  dividends  on  our  common  stock  in  the  foreseeable  future,  capital 

appreciation, if any, would be our stockholders’ only source of gain. 

We have never declared or paid any cash dividends on our common shares, and we currently expect that earnings, if any, 
and cash flow will primarily be retained and used in our operations, including servicing any debt obligations we may have now or in 
the future. Accordingly, although we do not anticipate paying any dividends in the foreseeable future, we may not be able to 
generate sufficient cash flow in order to allow us to pay future dividends on, or make any distributions with respect to our common 
stock. As a result, capital appreciation, if any, of our common  stock  would be our stockholders’ sole source of gain  on their 
investment in our common stock for the foreseeable future. 

Item 1B.     Unresolved Staff Comments 

None. 

Item 2.     Properties 

Our  corporate  headquarters  is  located  at  9363 Towne  Centre  Drive,  San  Diego,  California  92121  where  we  occupy 
approximately 6,800 square feet of office space. The term of our sublease at Towne Centre Drive, San Diego expires in the first 
quarter of 2015. In June 2014, we entered into a lease for approximately 18,000 square feet of office space, which will serve as the 
Company's new corporate headquarters, replacing the current facilities. The lease will commence in three phases, with 2,300 square 
feet of space which commenced on July 1, 2014 , 14,000 square feet of space becoming available in the first quarter of 2015 and the 
final 1,600 square feet of space becoming available in the first quarter of 2016 . The new lease expires on January 31, 2018. We 
believe that our existing and upcoming facilities are adequate to meet our current needs. 

Item 3.     Legal Proceedings 

None. 

Item 4.     Mine Safety Disclosures 

Not applicable. 

39 

 
 
 
 
       
  
 
 
 
 
 
PART II 

Item 5.    Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities 

          Our common stock has been listed on The NASDAQ Capital Market since July 15, 2013 under the symbol "MRTX". Prior 
to that date, there was no public market for our common stock in the United States as our common stock was listed on the Toronto 
Stock Exchange, or TSX. 

On March 6, 2015, the last reported sale price for our common stock on The NASDAQ Capital Market was $25.08 per 
share. The following table sets forth the range of high and low sales prices per share of our common stock as reported on The 
NASDAQ Capital Market and the TSX for the period indicated. 

Year Ended December 31, 2014 

Fourth Quarter    

Third Quarter 

Second Quarter 

First Quarter 

Year Ended December 31, 2013 

Fourth Quarter 
Third Quarter (from July 15, 2013 through  
     September 30, 2013) 
Third Quarter (from July 1, 2013 through July 14, 2013) 

Second Quarter 

First Quarter 

Stock Exchange 

High  Currency  Low  Currency 

The NASDAQ Capital Market*  $ 19.90   USD  $ 13.69   USD 
The NASDAQ Capital Market*  $ 21.58   USD  $ 15.59   USD 
The NASDAQ Capital Market*  $ 23.75   USD  $ 15.86   USD 
The NASDAQ Capital Market*  $ 25.97   USD  $ 16.50   USD 

The NASDAQ Capital Market*  $ 20.90   USD  $ 15.00   USD 

The NASDAQ Capital Market*  $ 17.24 

TSX** 

TSX** 

TSX** 

USD 
USD  $  7.00 
$  7.20   CAD  $  6.80   CAD 
$  8.50   CAD  $  3.50   CAD 
$ 10.00   CAD  $  6.50   CAD 

   *Prices quoted for The NASDAQ Capital Market are in U.S. dollars. 
** Prices quoted for the TSX are in Canadian dollars. 

As of March 6, 2015, we had 15 stockholders of record, which excludes stockholders whose shares were held in nominee 
or street name by brokers. The actual number of common stockholders is greater than the number of record holders, and includes 
stockholders who are beneficial owners, but whose shares are held in street name by brokers and other nominees. This number of 
holders of record also does not include stockholders whose shares may be held in trust by other entities. We have never declared or 
paid any cash dividends on our capital stock. We currently intend to retain any future earnings for funding operations and, therefore, 
do not anticipate paying any cash dividends in the foreseeable future. 

40 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Stock Performance Graph and Cumulative Total Return 

The graph below shows the cumulative total stockholder return assuming the investment of $100 on July 15, 2013 (and the 
reinvestment of dividends thereafter) in each of (i) Mirati Therapeutic, Inc.’s common stock, (ii) the NASDAQ Composite Index and 
(iii) the NASDAQ Biotechnology Index. The comparisons in the graph below are based upon historical data and are not indicative 
of, or intended to forecast, future performance of our common stock or Indexes. 

Recent Sales of Unregistered Securities 

None. 

41 

 
 
 
 
 
Use of Proceeds 

We commenced our first public offering in the United States pursuant to a registration statement on Form S-1 (File No. 
333-191544) that was declared effective by the SEC on October 23, 2013 and registered an aggregate of 3,250,000 shares of our 
common stock for sale to the public at price of $17.50 per share for an aggregate offering price of approximately $56.9 million. On 
October 29, 2013, we completed the offering.  On November 27, 2013 the underwriters exercised their option to purchase an 
additional  87,500  shares  of  our  common  stock  at  a  price  of  $17.50  per  share  and  an  aggregate  additional  offering  price  of 
approximately $1.5 million.  Jefferies LLC and Leerink Swann LLC acted as joint book-running managers for the offering, and 
Piper Jaffray & Co. served as co-manager for the offering. 

The underwriting discounts and commissions connected with the offering totaled approximately $3.5 million. We incurred 
additional  costs  of  approximately  $0.7  million  in  offering  expenses,  which  when  added  to  the  underwriting  discounts  and 
commissions paid by us, amounts to total fees and costs of approximately $4.2 million. Thus, net offering proceeds to us, after 
deducting underwriting discounts and commissions and offering costs, were $54.2 million. No offering costs were paid directly or 
indirectly to any of our directors or officers (or their associates) or persons owning ten percent or more of any class of our equity 
securities or to any other affiliates. 

As  of  December 31,  2014  we  have  used  approximately  $25.1  million  of  these  funds  for  preclinical  and  clinical 
development of our two lead kinase programs, MGCD265 and MGCD516, and our HDAC inhibitor, mocetinostat and related 
administrative support.  We plan to use the remaining net proceeds from our public offering to fund our ongoing and planned clinical 
and dose confirmation trials for our lead product candidates and for research and development activities, working capital and other 
general corporate purposes. Our expected use of net proceeds from our public offering represents our current intentions based upon 
our present plans and business condition. We cannot predict with certainty all of the particular uses for our current funds, or the 
amounts that we will actually spend on the uses set forth above. The amounts and timing of our actual use of these funds will vary 
depending on numerous factors, including our ability to obtain additional financing, the relative success and cost of our research, 
preclinical and clinical development programs, and the amount and timing of additional revenues. As a result, our management will 
have broad discretion in the application of these funds, and investors will be relying on our judgment regarding the application of 
the net proceeds of the offering. 

Purchases of Equity Securities by the Issuer and Affiliated Purchasers 

None. 

42 

 
 
 
 
 
 
 
Item 6.  Selected Consolidated Financial Data 

Please read the following selected financial data in conjunction with "Management's Discussion and Analysis of 

Financial Condition and Results of Operations" and the Consolidated Financial Statements and related notes included 
elsewhere in this annual report on Form 10-K. 

Consolidated Statements of Operations                                      
and Comprehensive Loss 

Revenue 

Collaboration, contract and license revenue 

 $ 

Total revenue 

Expenses 

Research and development 

General and administrative 

Restructuring costs 

Total operating expenses 

Loss from operations 
Other income (expense), net 

Change in fair value of warrant liability* 

Loss before income taxes 
Income tax benefit (expense) 

Net loss 

Unrealized gain (loss) on available-for-sale 
investments 

Comprehensive loss 

Basic and diluted net loss per share 

 $ 

 $ 

 $ 

Year Ended December 31, 

2014 

2013 

2012 

2011 

(in thousands, except share and per share amounts) 

—    $ 
—    

—    $ 
—    

—    $ 
—    

3,144 
3,144 

26,071    
12,699    
334    
39,104    
(39,104 )  
(77 )  

(4,517 )  
(43,698 )  
—    
(43,698 )   $ 

14 
(43,684 )   $ 

(3.24 )   $ 

19,797    
11,177    
1,025    
31,999    
(31,999 )  
(1,084 )  

(19,799 )  
(52,882 )  
23    
(52,859 )   $ 

(13 )  
(52,872 )   $ 

(4.78 )   $ 

15,081    
5,417    
—    
20,498    
(20,498 )  
251    
—    
(20,247 )  
(39 )  
(20,286 )   $ 

— 
(20,286 )   $ 

(3.00 )   $ 

8,891 
4,340 
— 
13,231 
(10,087) 
309 
— 
(9,778) 
— 
(9,778) 

—

(9,778) 

(1.98) 

Weighted average number of shares used in 

computing net loss per share, basic and diluted 

13,483,467 

11,057,040 

6,762,985 

4,944,184

*Beginning January 1, 2013, the Company reclassified common stock warrants issued in 2011 and 2012 from Stockholders' 
Equity to current liability due to a January 1, 2013 change in the Company's functional currency. The warrants were recorded at 
fair value (estimated using the Black-Scholes option-pricing model) and adjusted to their estimated fair value at each reporting 
date. The increases or decreases in the fair value of such warrants were recorded as a change in fair value of warrant liability in 
the consolidated statements of operations and comprehensive loss. All the warrants were amended during the second half of 
2014 to allow for the warrants to be denominated in U.S. Dollars, at which point, they were reclassified into stockholder's 
equity and do not require ongoing fair value revisions. 

Consolidated Balance Sheet Data 

2014 

2013 

2012 

2011 

December 31, 

Cash, cash equivalents and short-term investments 

 $ 

Working capital 

Total assets 

Accumulated deficit 

Total stockholders' equity 

29,303     $ 
27,261    
33,479    
(242,089 )  
28,062    

(in thousands) 

62,070     $ 
25,563    
64,537    
(198,391 )  
25,885    

36,983     $ 
33,989    
39,801    
(140,491 )  
34,416    

28,445  
26,711  
31,082  
(120,205 ) 
27,305  

43 

 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 7.  Management's Discussion and Analysis of Financial Condition and Results of Operations 

You should read the following discussion and analysis of our financial condition and results of operations together with our 
consolidated financial statements and related notes thereto included elsewhere in this Annual Report on Form 10-K. Some of the 
information  contained  in  this  discussion  and  analysis  or  set  forth  elsewhere  in  this Annual  Report  on  Form  10-K,  including 
information with respect to our plans and strategy for our business and related financing, includes forward-looking statements that 
involve risks and uncertainties. As a result of many factors, including those factors set forth in the "Risk Factors" section of this 
Annual Report on Form 10-K, our actual results could differ materially from the results described in or implied by the forward-
looking statements contained in the following discussion and analysis. 

Company Overview 

Mirati Therapeutics, Inc. ("Mirati") is a clinical-stage biopharmaceutical company focused on developing a pipeline of 
targeted  oncology  products. We  focus  our  development  programs  on  drugs  intended  to  treat  specific  genetically  defined  and 
identified  cancer  patients  with  unmet  needs.  Our  pipeline  consists  of  three  product  candidates:  MGCD265,  MGCD516  and 
mocetinostat. MGCD265 and MGCD516 are orally-bioavailable, spectrum-selective kinase inhibitors with distinct target profiles 
that are in development to treat patients with non-small cell lung cancer, or NSCLC, and other solid tumors including squamous cell 
carcinoma of the head and neck, or HNSCC. MGCD265 is in Phase 1b clinical development and MGCD516 is in Phase 1 clinical 
development in the dose escalation phase. Mocetinostat is an orally-bioavailable, spectrum-selective histone deacetylase, or HDAC, 
inhibitor currently in Phase 2 development.  Mocetinostat is being developed for the second line treatment of patients with bladder 
cancer and non-hodgkins lymphoma, or NHL, specifically focusing on diffuse large B-cell lymphoma, or DLBCL, and follicular 
lymphoma, or FL.  DLBCL and FL tumors have a genetic alteration in one of two genes that have been shown to increase the 
sensitivity of their tumor cells to mocetinostat in preclinical models. Our development goals for 2015 include demonstrating initial 
proof of concept for MGCD265 in NSCLC by mid-2015, and if successful, initiating a single-arm registration study by the end of 
2015;  achieving  a  dose  for  MGCD516  that  potently  inhibits  the  targeted  genetic  alterations  by  the  first  half  of  2015,  and,  if 
successful, initiating dose expansion cohorts in selected patients in  mid-2015; and demonstrating initial proof of concept for 
mocetinostat in bladder cancer and DLBCL by mid-2015, which, if successful, could enable the initiation of single agent registration 
trials. 

We were incorporated under the laws of the State of Delaware on April 29, 2013 as Mirati Therapeutics, Inc.  On May 8, 
2013, we entered into a plan of arrangement with MethylGene, Inc., or MethylGene Canada, pursuant to which MethylGene Canada 
became our wholly owned subsidiary and all of its shareholders became proportionate shareholders of ours. 

Liquidity Overview 

At  December  31,  2014,  we  had  $29.3  million  of  cash,  cash  equivalents  and  short-term  investments  compared  to 
$62.1 million at December 31, 2013.  In February 2015, we completed a follow-on offering of common stock for net proceeds of 
approximately $48.2 million. We believe that our current cash, cash equivalents and short-term investments together with the net 
proceeds from the February 2015 common stock offering will be sufficient to fund our currently planned operations through the 
third quarter of 2016. We have not generated any revenue from product sales. To date, we have funded our operations primarily 
through the sale of our common stock and through up-front payments, research funding and milestone payments under previous 
collaborative arrangements. To fund future operations we will likely need to raise additional capital as discussed more fully below 
under the heading “Liquidity and Capital Resources.” 

We have incurred losses in each year since our inception. Our net losses were $43.7 million, $52.9 million, and $20.3 
million for the years ended December 31, 2014, 2013 and 2012, respectively. As of December 31, 2014, we had an accumulated 
deficit of $242.1 million. Substantially all of our operating losses resulted from expenses incurred in connection with our product 
development programs, research efforts and related general and administrative support associated with our operations.  

Critical Accounting Policies and Significant Judgments and Estimates 

Our discussion and analysis of financial condition and results of operations are based upon our consolidated financial 
statements, which have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these 
financial statements requires us to make significant estimates and judgments that affect the reported amounts of assets, liabilities, 
revenue and expenses and related disclosures. On an ongoing basis, our actual results may differ significantly from our estimates. 

While our significant accounting policies are more fully described in Note 2 to our consolidated financial statements 
appearing  elsewhere  in  this Annual  Report  on  Form  10-K,  we  believe  the  following  accounting  policies  to  be  critical  to  the 
judgments and estimates used in the preparation of our consolidated financial statements. 

44 

 
 
 
 
 
 
 
 
 
 
Accrued Research and Development Expenses 

We accrue and expense clinical trial activities performed by third parties based upon estimates of the proportion of work 
completed over the life of the individual clinical trial and patient enrollment rates in accordance with agreements established with 
Clinical Research Organizations, or CROs, and clinical trial sites. We determine the estimates by reviewing contracts, vendor 
agreements and purchase orders, and through discussions with internal clinical personnel and external service providers as to the 
progress or stage of completion of trials or services and the agreed-upon fee to be paid for such services. However, actual costs and 
timing of clinical trials are highly uncertain, subject to risks and may change depending upon a number of factors, including our 
clinical development plan. 

We make estimates of our accrued expenses as of each balance sheet date in our financial statements based on facts and 
circumstances known to us at that time. If the actual timing of the performance of services or the level of effort varies from the 
estimate, we will adjust the accrual accordingly. Nonrefundable advance payments for goods and services, including fees for process 
development or manufacturing and distribution of clinical supplies that will be used in future research and development activities, 
are deferred and recognized as expense in the period that the related goods are consumed or services are performed. 

Warrant Liability 

Beginning January 1, 2013, we reclassified common stock warrants issued in 2011 and 2012 from stockholders' equity to 
current liability due to a January 1, 2013 change in our functional currency. The warrants were recorded at fair value (estimated 
using the Black-Scholes option-pricing model) and adjusted to their estimated fair value at each reporting date. The increases or 
decreases in the fair value of such warrants were recorded as a change in fair value of warrant liability in the consolidated statements 
of operations and comprehensive loss. All the warrants were amended during the second half of 2014 to allow for the warrants to be 
denominated in U.S. Dollars, at which point, they were reclassified into stockholder's equity and do not require ongoing fair value 
adjustments. 

Share-Based Compensation 

We have a stock option compensation plan in which the fair value of stock options granted is determined at the date of the 
grant using the Black-Scholes option-pricing model and is expensed over the vesting period of the options. Stock compensation is 
recognized using the graded accelerated vesting method.  In determining the expense, we deduct the number of options that are 
expected to be forfeited at the time of a grant and revise this estimate, if necessary, in subsequent periods if actual forfeitures differ 
from those estimated. Any amounts paid by employees on exercise of the stock options and subsequent purchase of stock are 
credited to common stock. 

The determination of the fair value of share-based compensation awards utilizing the Black-Scholes model is affected by 
our stock price and a number of assumptions, including but not limited to expected stock price volatility over the term of the awards 
and the expected term of stock options. Changes in the assumptions can materially affect the fair value estimates. For example, an 
increase in the underlying stock price results in a significant increase in the Black-Scholes option-pricing, which includes estimates 
such as expected term, expected volatility and interest rates. 

Financial Operations Overview 

Research and Development Expenses 

Research and development expenses consist primarily of: 

•  

•  

•  

salaries and related expenses for personnel, including expenses related to stock options or other share-based compensation 
granted to personnel in development functions; 

fees paid to external service providers such as CROs and contract manufacturing organizations related to clinical 
trials; 

contractual obligations for clinical development, clinical sites, manufacturing and scale-up, and formulation of clinical 
drug supplies; and  

•  

costs for facilities and amortization of equipment.  

We  record  research  and  development  expenses  as  incurred.  At  this  time,  due  to  the  risks  inherent  in  the  clinical 
development process and the early stage of our product development programs we are unable to estimate with any certainty the costs 
we will incur in the continued development of MGCD265, MGCD516 and mocetinostat. The process of conducting clinical trials 
necessary  to  obtain  regulatory  approval  and  manufacturing  scale-up  to  support  expanded  development  and  potential  future 
commercialization is costly and time consuming. Any failure by us or delay in completing clinical trials, manufacturing scale up or 

45 

 
 
 
 
 
 
 
 
in obtaining regulatory approvals could lead to increased research and development expense and, in turn, have a material adverse 
effect on our results of operations. We expect that our research and development expenses may increase if we are successful in 
advancing MGCD265, MGCD516, mocetinostat or any of our preclinical programs into advanced stages of clinical development. 

General and Administrative Expenses 

General and administrative expenses consist primarily of salaries and related benefits, including share-based compensation 
related to our executive, finance, business development, legal and support functions. Other general and administrative expenses 
include rent and utilities, travel expenses and professional fees for auditing and tax services. 

Results of Operations 

Comparison of the Years Ended December 31, 2014 and 2013 

The following table summarizes our results of operations for the year ended December 31, 2014 and 2013 (in thousands): 

Year Ended December 31, 

Increase 

Research and development expenses 

$ 

General and administrative expenses 

Restructuring costs 

Other income/(expense), net 

2014 
26,071     $ 
12,699    
334    
(77 )  

2013 
19,797     $ 
11,177   
1,025   
(1,084)  

Change in fair value of warrant liability 

(4,517 )  

(19,799)  

(Decrease) 
6,274  
1,522  
(691 ) 
1,007  
15,282  

Research and Development Expenses 

Our research and development efforts during the years ended December 31, 2014 and 2013 were focused primarily on our 
oncology programs, including our two lead kinase programs, MGCD265 and MGCD516, and our HDAC inhibitor program, 
mocetinostat. The following table summarizes our research and development expenses, in thousands: 

Third-party development expense: 

MGCD265 

MGCD516 

mocetinostat 

MGCD290* 

$ 

Total third-party development expense 

Internal research and development expense 

Research and development expense, gross 

Less: Investment tax credits 

Research and development expense 

$ 

Year Ended December 31, 

2014 

2013 

Increase 

(Decrease) 

7,273     $ 
2,932    
4,507    
123    
14,835    
11,236    
26,071    
—    
26,071     $ 

6,588     $ 
2,495    
2,580    
1,629    
13,292    
7,336    
20,628    
(831 )  
19,797     $ 

685  
437  
1,927  
(1,506 ) 
1,543  
3,900  
5,443  
831  
6,274  

*Development of MGCD290 ceased in early 2013 

For the year ended December 31, 2013, reclassifications were made to certain research and development program expenses 
line items to conform to the current presentation. These reclassifications had no impact on total research and development expenses. 

Research  and  development  expenses  for  the  year  ended  December 31,  2014  were  $26.1  million  compared  to  $19.8 
million during the year ended December 31, 2013.  The increase of $6.3 million for the year ended December 31, 2014 primarily 
relates to an increase in third-party development expense of $1.5 million, an increase of internal research and development expense 
of $3.9 million and the absence of investment tax credits,  or ITCs, of $0.8 million during 2014.  The increase in third-party 
development expense relates to an increase in expenses associated with our ongoing clinical trials for our oncology candidates, 
MGCD265, MGCD516 and mocetinostat and related manufacturing expenses.  The increase in internal research and development 
expense, which includes employee salaries and related expense, facilities expense and early discovery costs, is due to an increase in 
salaries and related expense, which is largely due to increased stock based compensation expense.  Prior to 2014, the Company was 

46 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
eligible to claim ITCs from a Canadian provincial tax authority due to its research and development operations performed within 
Canada.   As a result of our relocation from Montreal, Canada to the United States, the Company is no longer eligible for these ITCs.  
The aforementioned increased costs are offset by a decrease in costs for MGCD290, which we are no longer developing internally, 
and the absence of costs incurred in 2013 associated with management changes made during 2013.  

General and Administrative Expenses 

General and administrative expenses for the year ended December 31, 2014 were $12.7 million compared to $11.2 million 
for the same period in 2013.  The increase of $1.5 million for the year ended December 31, 2014 is the result of an increase in 
salaries and related expense (which is primarily the result of higher stock based compensation costs), increased legal and consulting 
costs  and  increased  costs  for  accounting,  tax  and  insurance. These  increased  costs  largely  reflect  our  status  as  a  U.S.  public 
company.  Partially offsetting these increases were one-time costs incurred in 2013 associated with the corporate restructuring and 
listing of our shares of common stock on The NASDAQ Capital Market. 

Restructuring Costs 

We  incurred  restructuring  costs  of  $0.3  million  and  $1.0  million  for  the  years  ended  December  31,  2014  and  2013, 
respectively, related to the closure of our Montreal, Quebec and Princeton, New Jersey facilities.  The offices were closed due to the 
consolidation of our operations to our San Diego facility, with employee separation charges accounting for the majority of the 
restructuring costs. The restructuring activities associated with the office closures were substantially complete as of March 31, 2014.   

Change in Fair Value of Warrant Liability 

The change in fair value of warrant liability represents expense or income associated with fair value adjustments to the 
warrant liability recorded during the period.  During the year ended December 31, 2014 and 2013, we recorded expense of $4.5 
million and $19.8 million, respectively, associated with the change in fair value of warrant liability. During the third and fourth 
quarters of 2014, we amended all of the outstanding warrant agreements to allow for the warrants to be denominated in U.S. Dollars. 
As a result of this amendment, the warrants qualify for equity classification and were reclassified into stockholders’ equity at their 
fair value as of the amendment date and revaluations of fair value are no longer required.  

Other Income (Expense), Net 

Other income (expense), net consists primarily of interest income and foreign exchange gains and losses.  Other income 
(expense), net for the year ended December 31, 2014 and 2013 was expense of $0.1 million and $1.1 million, respectively.  The 
decrease in expense primarily reflects the impact of foreign exchange rates as we operated in U.S. dollars throughout the year ended 
December 31, 2014. 

Comparison of the Years Ended December 31, 2013 and 2012 

The following table summarizes the results of our operations for the years ended December 31, 2013 and 2012 (in 

thousands): 

Research and development, net 

General and administrative 

Restructuring costs 

Other income (expense), net 

Change in fair value of warrant liability 

$ 

Year Ended December 31, 

2013 

19,797     $ 
11,177    
1,025    
(1,084 )  

(19,799 )  

2012 
15,081     $ 
5,417    
—    
251    
—    

Increase 
(Decrease) 

4,716  
5,760  
1,025  
(1,335 ) 

(19,799 ) 

For the year ended December 31, 2013 and 2012, reclassifications were made to certain research and development program 
expenses  line  items  to  conform  to  the  current  year  presentation. These  reclassifications  had  no  impact  on  total  research  and 
development expenses. 

47 

 
 
 
 
 
 
 
 
 
 
 
Research and Development Expenses 

The following table summarizes our research and development expenses, (in thousands): 

Third-party development expense: 

MGCD265 

MGCD516 

mocetinostat 

MGCD290* 

$ 

Total third-party development expense 

Internal research and development expense 

Research and development expense, gross 

Less: Investment tax credits 

Research and development expense 

$ 

Year Ended December 31, 

2013 

2012 

Increase 

(Decrease) 

6,588     $ 
2,495    
2,580    
1,629    
13,292    
7,336    
20,628    
(831 )  
19,797     $ 

7,261     $ 
—    
59    
3,477    
10,797    
5,959    
16,756    
(1,675 )  
15,081     $ 

(673 ) 
2,495  
2,521  
(1,848 ) 
2,495  
1,377  
3,872  
844  
4,716  

*Development of MGCD290 ceased in early 2013 

For the years ended December 31, 2013 and 2012, reclassifications  were  made to certain research and development 
program expenses line items to conform prior years’ financial information to the current presentation. These reclassifications had no 
impact on total research and development expenses. 

Research and development expenses were $19.8 million in 2013 compared to $15.1 million in 2012.  The increase of 
$4.7 million primarily reflects increased costs for mocetinostat including costs associated with a dose confirmation clinical trial for 
mocetinostat which commenced in the fourth quarter of 2013, and costs associated with preparation for an Investigational New 
Drug, or IND, application for MGCD516.  During the year ended December 31, 2012 we recorded a favorable adjustment of prior 
year calculations of ITCs subsequent to the completion of an audit of such ITCs by the provincial tax authority.  Partially offsetting 
these increases were reduced costs for MGCD290 which we are no longer actively pursuing internally. 

General and Administrative Expenses 

General and administrative expenses were $11.2 million in 2013 compared to $5.4 million in 2012. The increase of $5.8 
million primarily reflects increased costs associated with management changes and one-time costs associated with the listing of our 
shares of common stock on the NASDAQ Capital Market and the transition to becoming a Delaware corporation. 

Restructuring Costs 

In 2013, we incurred restructuring costs of $1.0 million due to the closing of the Montreal, Quebec and Princeton, New 
Jersey facilities.  Employee separation charges amounted to $0.9 million while the remainder primarily related to facility charges 
and asset impairment. Restructuring activities commenced in 2013 and so there is no expense for the year ended December 31, 
2012. 

Other Income (Expense), Net 

Other income (expense), net was expense of $1.1 million for the year ended December 31, 2013 compared to income of 
$0.3 million for the year ended December 31, 2012. The increase in expense of $1.4 million primarily reflects the impact of foreign 
exchange rate changes between the U.S. dollar and Canadian dollar offset by interest income of $0.2 million. 

Change in Fair Value of Warrant Liability 

We reclassified common stock warrants issued in 2011 and 2012 from stockholders' equity to current liability due to a 
January 1, 2013 change in our functional currency. During the year ended December 31, 2013 we recorded $19.8 million of expense 
associated with the change in fair value of warrant liability. Such fair value adjustments were not required during 2012, therefore 
there is no such expense recorded for the year ended December 31, 2012. 

48 

 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
Liquidity and Capital Resources 

To date, we have funded our operations primarily through the sale of our common stock and through up-front payments, 
research funding and milestone payments under previous collaborative arrangements. Since inception, we have primarily devoted 
our resources to funding research and development programs, including discovery research, preclinical and clinical development 
activities. 

At  December 31,  2014,  we  had  $29.3  million  of  cash,  cash  equivalents  and  short-term  investments  compared  to 
$62.1 million at December 31, 2013.  In February 2015, we completed a follow-on offering of common stock for net proceeds of 
approximately $48.2 million. We believe that our current cash, cash equivalents and short-term investments together with the net 
proceeds from the February 2015 common stock offering will fund our currently planned operations through the third quarter of 
2016.  

To  fund  future  operations  we  will  likely  need  to  raise  additional  capital.  The  amount  and  timing  of  future  funding 
requirements will depend on many factors, including the timing and results of our ongoing development efforts, the potential 
expansion of our current development programs, potential new development programs and related general and administrative 
support. We anticipate that we will seek to fund our operations through public or private equity or debt financings or other sources, 
such  as  potential  collaboration  agreements. We  cannot  assure  that  anticipated  additional  financing  will  be  available  to  us  on 
favorable  terms,  or  at  all. Although  we  have  previously  been  successful  in  obtaining  financing  through  our  equity  securities 
offerings, there can be no assurance that we will be able to do so in the future. 

The following table provides a summary of the net cash flow activity for each of the periods set forth below (in thousands): 

Net cash used in operating activities 

Net cash provided by (used in) investing activities 

Net cash provided by financing activities 

Increase (decrease) in cash 

Year Ended December 31, 

2014 
(32,748 )  
24,219    
887    
(7,642 )  

2013 
(29,455 )  

(29,470 )  
54,757    
(4,168 )  

2012 
(16,650 ) 
55  
24,813  
8,218  

Net cash used in operating activities 

Net cash used for operating activities was $32.7 million, $29.5 million, and $16.7 million the years ended December 31, 
2014, 2013, and 2012, respectively. Cash used in operating activities during 2014 primarily related to our net losses of $43.7 
million, adjusted for non-cash items such as share-based compensation expense of $7.1 million, the change in fair value of warrant 
liability of $4.5 million, amortization of premium on investments of $0.5 million, and net cash outflows from a change in our 
operating assets and liabilities of $1.4 million. Cash used in operating activities during 2013 primarily related to our of net losses of 
$52.9 million, adjusted for non-cash items such as the change in fair value of warrant liability of $19.8 million, change in fair value 
adjustment of share-based compensation liability of $1.4 million, shared-based compensation expense of $1.8 million, and net cash 
inflows from a change in our operating assets and liabilities of $0.3 million. Cash used in operating activities during 2012 primarily 
related to our net losses of $20.3 million, adjusted for non-cash items such as share-based compensation expense of $2.0 million, 
and net cash inflows from a change in our operating assets and liabilities of $1.4 million. 

Net cash provided by (used in) investing activities 

Investing activities consist primarily of purchases, sales and maturities of short-term investments, and to a lesser extent the 
purchase of property and equipment.  Investing activities provided cash of $24.2 million in 2014, used $29.5 million in 2013, and 
provided $0.1 million in 2012.  

Net cash provided by financing activities 

Net  cash  provided  by  financing  activities  was  $0.9  million,  $54.8  million,  and  $24.8  million,  for  the  years  ended 
December 31, 2014, 2013, and 2012, respectively. Net cash provided by financing activities for the year ended December 31, 2014 
was due to proceeds from exercise of common stock options and warrants of $0.9 million. Net cash provided by financing activities 
during 2013 consisted of proceeds from issuance of common stock, net of issuance costs, of $54.2 million, and proceeds from 
exercise of common stock options and warrants of $0.6 million. Net cash provided by financing activities during 2012 consisted 
primarily of issuance of common stock, net of issuance costs, of $19.9 million and issuance of warrants, net of issuance costs, of 
$4.9 million. 

49 

 
 
 
 
 
 
 
 
 
 
 
 
Contractual Obligations and Commitments 

The following table summarizes our contractual obligations and commitments as of December 31, 2014 that will affect our 

future liquidity (in thousands): 

Year Ended December 31, 

Total 

Less Than 
1 year 

1 -3 
Years 

3 -5 
Years 

More Than 
5 Years 

Operating lease obligations(1) 

Total Contractual Obligations 

$ 

$ 

841    $ 
841    $ 

223    $ 
223    $ 

618    $ 
618    $ 

—    $ 
—    $ 

—  
—  

(1) In June 2014 we entered into a multi-year non-cancelable building lease for office space in San Diego, California. The lease 
expires in January 2018. 

We enter into contracts in the normal course of business with clinical sites for the conduct of clinical trials, CROs for 
clinical research studies, professional consultants for expert advice and other vendors for clinical supply manufacturing or other 
services. These contracts generally provide for termination on notice, and therefore are cancelable contracts and not included in the 
table of contractual obligations and commitments. 

Off-Balance Sheet Arrangements 

During the years ended December 31, 2014 and 2013, we did not have any off-balance sheet arrangements (as defined by 
applicable SEC regulations) that are reasonably likely to have a current or future material effect on our financial condition, results of 
operations, liquidity, capital expenditures or capital resources. 

JOBS Act 

In April 2012, the JOBS Act was enacted. Section 107 of the JOBS Act provides that an emerging growth company can 
take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or 
revised accounting standards. Thus, an emerging growth company can delay the adoption of certain accounting standards until those 
standards would otherwise apply to private companies. We have irrevocably elected not to avail ourselves of this extended transition 
period and, as a result, we will adopt new or revised accounting standards on the relevant dates on which adoption of such standards 
is required for other companies. 

We are in the process of evaluating the benefits of relying  on other exemptions and reduced reporting requirements 
provided by the JOBS Act. Subject to certain conditions set forth in the JOBS Act, as an “emerging growth company,” we intend to 
rely on certain of these exemptions, including without limitation with respect to, (1) providing an auditor’s attestation report on our 
system of internal controls over financial reporting pursuant to Section 404(b) of the Sarbanes-Oxley Act and (2) complying with 
any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation 
or a supplement to the auditor’s report providing additional information about the audit and the financial statements, known as the 
auditor discussion and analysis. We will remain an emerging growth company until the earliest of (1) the end of the fiscal year in 
which the market value of our common stock that is held by non-affiliates exceeds $700 million as of the end of the second fiscal 
quarter, (2) the end of the fiscal year in which we have total annual gross revenue of $1 billion or more during such fiscal year, (3) 
the date on which we issue more than $1 billion in non-convertible debt in a three-year period, or (4) December 31, 2018. 

50 

 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 7A.     Quantitative and Qualitative Disclosures about Market Risk 

Some of our short-term investments have market risk in that a change in prevailing interest rates may cause the principal 
amount of the investment to fluctuate. Financial instruments that potentially subject us to significant concentrations of credit risk 
consist primarily of cash, cash equivalents and short-term investments. We invest our excess cash primarily in commercial paper and 
debt instruments of financial institutions, corporations, U.S. government-sponsored agencies and the U.S. Treasury. We mitigate 
credit risk by maintaining a well-diversified portfolio and limiting the amount of investment exposure as to institution, maturity and 
investment type. We invest our excess cash in accordance with our investment policy. 

Because of the short-term maturities of our cash equivalents and short-term investments, we do not believe that an increase 
in market rates would have any significant impact on the realized value of our investments. If a 10% change in interest rates were to 
have occurred on December 31, 2014, this change would not have had a material effect on the fair value of our investment portfolio 
as of that date. 

Item 8.     Financial Statements and Supplementary Data 

The financial statements and supplemental data required by this item are set forth at the pages indicated in Part IV, 

Item 15(a)(1) of this annual report. 

Item 9.     Changes In and Disagreements with Accountants on Accounting and Financial Disclosure 

None. 

Item 9A.     Controls and Procedures 

Evaluation of Disclosure Controls and Procedures 

As  required  by  Rule 13a-15(b) and  Rule  15d-15(b)  of  the  Exchange Act,  our  management,  including  our  principal 
executive officer and our principal financial officer, conducted an evaluation as of the end of the period covered by this Annual 
Report on Form 10-K of the effectiveness of the design and operation of our disclosure controls and procedures. Based on that 
evaluation, management concluded that as of March 31, 2013, the Company’s disclosure controls and procedures were not effective 
due to a material  weakness in internal control over financial reporting associated  with the restatement of the calculation and 
disclosure  of  diluted  loss  per  share  for  the  three  months  ended  March  31,  2013. A  material  weakness  is  a  deficiency,  or  a 
combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material 
misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis.  Management 
presented a remediation plan to the Company's Audit Committee and the Audit Committee approved management’s remediation 
plan,  which  added  a  new  financial  reporting  process  control  for  the  calculation  of  diluted  earnings  per  share.    Management 
implemented the internal control remediation plan and as of December 31, 2014, management has concluded, through testing, that 
these controls are operating effectively and the material weakness is considered remediated.   

Management’s Report on Internal Control Over Financial Reporting 

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as such 
term is defined in Exchange Act Rule 13a-15(f). Internal control over financial reporting is a process designed under the supervision 
and with the participation of our management, including our principal executive officer and principal financial officer, to provide 
reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes 
in accordance with accounting principles generally accepted in the United States of America. 

As of December 31, 2014, our management assessed the effectiveness of our internal control over financial reporting using 
the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control-Integrated 
Framework (2013 Framework). Based on this assessment, our management concluded that, as of December 31, 2014, our internal 
control over financial reporting was effective based on those criteria. 

This Annual Report on  Form 10-K does not include an attestation report of our registered public  accounting firm due  to a  

transition period established by the JOBS Act for emerging growth companies. 

Changes in Internal Control Over Financial Reporting 

There were no changes in our internal control over financial reporting identified in management's evaluation pursuant 
to Rules 13a-15(d) or 15d-15(d) of the Exchange Act during the quarter ended December 31, 2014 that materially affected, or 
are reasonably likely to materially affect, our internal control over financial reporting. 

51 

 
 
 
 
 
 
 
 
 
 
 
 
  
 
Item 9B.     Other Information 

Recently Adopted Accounting Pronouncements 

See “Notes to Financial Statements-Note 2-Recent Accounting Pronouncements” of our annual financial statements. 

Item 10.     Directors, Executive Officers and Corporate Governance 

PART III 

The information required by this item with respect to directors is incorporated by reference from the information under the 
captions "Election of Directors," "Section 16(a) Beneficial Ownership Reporting Compliance," and "Code of Ethics" contained in 
the  proxy  statement  to  be  filed  with  the  SEC  pursuant  to  Regulation 14A  in  connection  with  our  2015  annual  meeting  of 
stockholders. The information required by this item with respect to executive officers appears under Part I of this annual report on 
Form 10-K under the caption "Business-Executive Officers and Directors." 

Item 11.     Executive Compensation 

 The information required by this item is incorporated by reference to the information under the captions "Non-Employee 
Director Compensation," "Executive Compensation" and "Compensation Committee Interlocks and Insider Participation" contained 
in  the  proxy  statement  to  be filed  with  the  SEC  pursuant  to  Regulation 14A  in  connection  with  our  2015  annual  meeting  of 
stockholders. 

Item 12.     Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters 

The  information  required  by  this  item  is  incorporated  by  reference  to  the  information  under  the  captions  "Security 
Ownership of Certain Beneficial Owners and Management" and "Equity Compensation Plan Information" contained in the proxy 
statement to be filed with the SEC pursuant to Regulation 14A in connection with our 2015 annual meeting of stockholders. 

Item 13.     Certain Relationships and Related Transactions, and Director Independence 

The information required by this item is incorporated by reference to the information under the captions "Election of 
Directors" and "Certain  Relationships and Related Transactions" contained in the proxy statement to be filed with the SEC pursuant 
to Regulation 14A in connection with our 2015 annual meeting of stockholders. 

Item 14.     Principal Accountant Fees and Services 

The information required by this item is incorporated by reference to the information under the caption contained in 
"Ratification of Selection of Independent Registered Public Accounting Firm" contained in the proxy statement to be filed with the 
SEC pursuant to Regulation 14A in connection with our 2015 annual meeting of stockholders. 

52 

 
         
        
         
         
         
 
Item 15.  Exhibits, Financial Statement Schedules 

PART IV 

1. Financial Statements. We have filed the following documents as part of this Annual Report: 

Consolidated Financial Statements 
Report of Independent Registered Public Accounting Firm 

Financial Statements: 

Consolidated Balance Sheets 

Consolidated Statements of Operations and Comprehensive Loss 

Consolidated Statements of Changes in Stockholders' Equity 

Consolidated Statements of Cash Flows 

Notes to Consolidated Financial Statements 

Page(s) 

54 

56 

57 

58 

59 

60 

2. Financial Statement Schedules. All schedules are omitted because they are not applicable or the required information is shown in the 
Financial Statements or notes thereto. 

53 

 
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

The Board of Directors and Stockholders 
Mirati Therapeutics, Inc. 

We have audited the accompanying consolidated balance sheet of Mirati Therapeutics, Inc. as of December 31, 2014, and the related 
consolidated statements of operations and comprehensive loss, changes in stockholders’ equity, and cash flows for the year ended 
December 31, 2014.  These financial statements are the responsibility of the Company’s management. Our responsibility is to 
express an opinion on these financial statements based on our audit. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). 
Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are 
free of material misstatement. We were not engaged to perform an audit of the Company’s internal control over financial reporting. 
Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are 
appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal 
control over financial reporting. Accordingly, we express no such opinion. An audit includes examining, on a test basis, evidence 
supporting  the  amounts  and  disclosures  in  the  financial  statements,  assessing  the  accounting  principles  used  and  significant 
estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a 
reasonable basis for our opinion. 

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of 
Mirati Therapeutics, Inc. at December 31, 2014, and the consolidated results of its operations and its cash flows for the year ended 
December 31, 2014, in conformity with U.S. generally accepted accounting principles. 

/s/ Ernst & Young LLP 

San Diego, CA 
March 11, 2015 

54 

 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

The Board of Directors and Stockholders of Mirati Therapeutics, Inc. 

We have audited the accompanying consolidated balance sheet of Mirati Therapeutics, Inc. as of December 31, 2013, and the 
related consolidated statements of operations and comprehensive loss, changes in stockholders’ equity, and cash flows for each 
of the two years in the period ended December 31, 2013. These financial statements are the responsibility of the Company’s 
management. Our responsibility is to express an opinion on these financial statements based on our audits. 

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). 
Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated 
financial statements are free of material misstatement. We were not engaged to perform an audit of the Company’s internal 
control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for 
designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the 
effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit 
also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing 
the accounting principles used and significant estimates made by management, and evaluating the overall financial statement 
presentation. We believe that our audits provide a reasonable basis for our opinion. 

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial 
position of Mirati Therapeutics, Inc. at December 31, 2013, and the consolidated results of its operations and its cash flows for 
each of the two years in the period ended December 31, 2013, in conformity with U.S. generally accepted accounting 
principles. 

Montreal, Canada 

March 17, 2014 

________________________ 
(1)CPA auditor, CA, public accountancy permit no. A120254 

 /s/Ernst & Young LLP(1) 

55 

 
 
 
 
 
 
 
 
 
Mirati Therapeutics, Inc. 
CONSOLIDATED BALANCE SHEETS 
(in thousands, except share and per share data) 

ASSETS 

Current assets 

Cash and cash equivalents 

Short-term investments 

Other current assets 

Total current assets 

Property and equipment, net 

Other assets 

Total assets 

LIABILITIES AND STOCKHOLDERS' EQUITY 
Current liabilities 

Accounts payable and accrued liabilities 

  Warrant liability 

Total current liabilities 
Other liability 

Total liabilities 
Commitments and contingencies 

Stockholders' equity 

$ 

$ 

December 31, 

2014 

2013 

6,593     $ 
22,710    
3,354    
32,657    
496    
326    
33,479     $ 

5,396    
—    
5,396    
21    
5,417    

14,235  
47,835  
2,145  
64,215  
322  
—  
64,537  

5,245  
33,407  
38,652  
—  
38,652  

Preferred stock, $0.001 par value, 10,000,000 shares authorized; none issued and 
outstanding at both December 31, 2014 and December 31, 2013 

— 

— 

Common stock, $0.001 par value; 100,000,000 authorized; 13,566,726 and 13,446,976 
issued and outstanding at December 31, 2014 and December 31, 2013, respectively 

Additional paid-in capital 

Accumulated other comprehensive income 

Accumulated deficit 

Total stockholders' equity 

Total liabilities and stockholders' equity 

$ 

14 
260,616    
9,521    
(242,089 )  
28,062    
33,479     $ 

13 
214,756  
9,507  
(198,391 ) 
25,885  
64,537  

See accompanying notes 

56 

 
 
 
 
   
 
   
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
 
Mirati Therapeutics, Inc. 
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS 
(in thousands, except share and per share data) 

Expenses 

Research and development 

General and administrative 

Restructuring costs 

Total operating expenses 

Loss from operations 

Other income (expense), net 

Change in fair value of warrant liability 

Loss before income taxes 

Income tax benefit (expense) 

Net loss 

Year Ended December 31, 

2014 

2013 

2012 

$ 

26,071     $ 
12,699   
334   
39,104   

19,797     $ 
11,177    
1,025    
31,999    

15,081 
5,417 
—  
20,498 

(39,104)  

(31,999 )  

(20,498 ) 

(77)  

(4,517)  

(1,084 )  

(19,799 )  

251  
—  

(43,698)  

(52,882 )  

(20,247 ) 

—   

23    

(39 ) 

$ 

(43,698 )   $ 

(52,859 )   $ 

(20,286 ) 

Unrealized gain (loss) on available-for-sale investments 

14   

(13 )  

—  

Comprehensive loss 

Basic and diluted net loss per share 

$ 

$ 

(43,684 )   $ 

(52,872 )   $ 

(20,286 ) 

(3.24 )  $ 

(4.78 )   $ 

(3.00 ) 

Weighted average number of shares used in computing net 

loss per share, basic and diluted 

13,483,467

11,057,040 

6,762,985

See accompanying notes 

57 

 
 
 
 
 
   
   
 
 
 
 
 
 
 
Mirati Therapeutics, Inc. 
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY 
(in thousands, except share data) 

Common Stock 

Common 
Stock 
Warrants 

Additional 
paid-in 
capital 

  Accumulated 
other 
comprehensive 
income 

  Amount 

Total 
stockholders' 
equity 

Balance at January 1, 2012 

Net loss for the year 

Share-based compensation expense 

Costs of reorganization 

Issuance of common stock, net of costs 

Issuance of warrants, net of costs 

Net exercise of warrants 

Foreign currency translation 

Balance at December 31, 2012 

Net loss for the year 

Share-based compensation expense 

Reclassification of warrants 

Reclassification of stock option liability 

Issuance of common stock, net of costs 

Exercise of options for cash 

Exercise of warrants for cash 

Net exercise of warrants 

Unrealized loss on investments 

Balance at December 31, 2013 

Net loss for the year 
Reclassification of warrants from 

liability 

Share-based compensation expense 

Exercise of options for cash 

Net exercise of warrants 

Unrealized gain on investments 

Balance at December 31, 2014 

Shares 
6,358,253    $ 

—   
—   
—   

3,593,819
—   
5,653   
—   

9,957,725    $ 

—   
—   
—   
—   
3,337,500   
40,534   
2,896   
108,321   
—   

13,446,976    $ 

—   

—
—   
76,224   
43,526   
—   

13,566,726    $ 

6    $ 
—   
—   
—   

6,247    $  132,312    $ 

—    
—    
—    

—   
2,009   
(15)  

19,882
—   
36   
—   

— 
4 
4,942    
—   
—   
(36 )  
—   
—    
10    $  11,153    $  154,224    $ 
—    
—   
—   
—    
—   
(11,153 )  
—    
—   
—    
3   
—    
—   
—    
—   
—    
—   
—    
—   
—    $  214,756    $ 
13    $ 
—    
—   

—   
1,823   
—   
1,369   
54,193   
540   
21   
2,586   
—   

—   

— 
—   
1   
—   
—   
14    $ 

36,931
7,050   
886   
993   
—   

— 
—    
—    
—    
—    
—    $  260,616    $ 

Accumulated 
deficit 
(120,205)   $ 
(20,286 )  
—    
—    

8,945    $ 
—   
—   
—   

— 
—   
—   
575   
9,520    $ 
—   
—   
—   
—   
—   
—   
—   
—   
(13 )  
9,507    $ 
—   

— 
—   
—   
—   
14   
9,521    $ 

— 
—    
—    
—    

(140,491)   $ 
(52,859 )  
—    
(5,041 )  
—    
—    
—    
—    
—    
—    

(198,391)   $ 
(43,698 )  

— 
—    
—    
—    
—    

(242,089)   $ 

27,305 
(20,286 ) 
2,009  
(15 ) 

19,886 
4,942  
—  
575  
34,416 
(52,859 ) 
1,823  
(16,194 ) 
1,369  
54,196  
540  
21  
2,586  
(13 ) 
25,885 
(43,698 ) 

36,931 
7,050  
887  
993  
14  
28,062 

See accompanying notes 

58 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mirati Therapeutics, Inc. 
CONSOLIDATED STATEMENTS OF CASH FLOWS 
(in thousands) 

Operating activities: 
Net loss 

Non-cash adjustments reconciling net loss to operating cash flows 

Depreciation of property and equipment 

Amortization of premium on investments 

Share-based compensation expense 

Loss on disposal of property and equipment 

Change in lease incentive liability 

Change in fair value of warrant liability 

Change in fair value adjustment of share-based compensation liability 

Change in restructuring costs 

Changes in operating assets and liabilities 

Other current assets 

Other assets 

Accounts payable and accrued liabilities 

Other liabilities 

Cash flows used for operating activities 

Investing activities: 

Purchases of short-term investments 

Disposal and maturities of short-term investments 

Purchases of property and equipment 

Proceeds from disposal of property and equipment 

Cash flows provided by / (used for) investing activities 

Financing activities: 

Proceeds from issuance of common stock, net of issuance costs 

Proceeds from issuance of warrants, net of issuance costs 

Proceeds from exercise of common stock options and warrants 

Cash flows provided by financing activities 

Increase / (decrease) in cash and cash equivalents 
Effect of exchange rate changes on cash and cash equivalents 

Cash and cash equivalents, beginning of year 

Cash and cash equivalents, end of year 

Years Ended 
December 31, 

2014 

2013 

2012 

$ 

(43,698 )   $ 

(52,859 )   $ 

(20,286 ) 

199    
534    
7,050    
—    
—    
4,517    
—    
13    

(1,209 )  

(326 )  
151    
21    
(32,748 )  

(10,468 )  
35,073    
(386 )  
—    
24,219    

171    
—    
1,823    
40    
(70 )  
19,799    
1,369    
—    

340    
—    
(68 )  
—    
(29,455 )  

(68,408 )  
39,138    
(204 )  
4    
(29,470 )  

—    
—    
887    
887    
(7,642 )  
—    
14,235    
6,593     $ 

54,196    
—    
561    
54,757    
(4,168 )  
—    
18,403    
14,235     $ 

$ 

123 
— 
2,009 
— 
85 
— 
— 
— 

(15) 
— 
1,434 
— 
(16,650) 

(29,431) 
29,716 
(230) 
— 
55 

19,886 
4,927 
— 
24,813 
8,218 
303 
9,882 
18,403  

Supplemental disclosures of non-cash investing and financing activities:   

Income taxes paid 

Net exercise of warrants 

$ 

$ 

—     $ 

35     $ 

993     $ 

2,586     $ 

34  

—  

See accompanying notes 

59 

 
 
 
 
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
   
   
 
 
   
   
Mirati Therapeutics, Inc. 

Notes to Consolidated Financial Statements 

December 31, 2014 

1. Description of Business 

Mirati  Therapeutics, Inc.  (“Mirati”  or  the  “Company”)  is  a  clinical-stage  biopharmaceutical  company  focused  on 
developing a pipeline of targeted oncology products.  The Company focuses its development programs on drugs intended to treat 
specific genetically defined and selected subsets of cancer patients with unmet needs. 

The Company's common stock has been listed on the NASDAQ Capital Market since July 15, 2013 under the ticker 
symbol "MRTX."  The Company has a wholly owned subsidiary in Canada, MethylGene, Inc. (“MethylGene”).  MethylGene’s 
common stock was listed on the Toronto Stock Exchange from June 29, 2004 until July 26, 2013 under the ticker symbol “MYG”. 
The Company also has an indirect, wholly-owned subsidiary, MethylGene US Inc., which was incorporated in Princeton, New 
Jersey on December 20, 2011 and started business activity in 2012.  MethylGene US Inc. ceased operations effective January 1, 
2014. During the first half of 2013, the Company conducted the majority of its operations through MethylGene and MethylGene US 
Inc. As a result of the arrangement agreement discussed in Note 2 under the heading "Basis of Presentation," Mirati became the 
parent company in June 2013 and primary operating company during the last half of 2013. Refer to Note 2 for further discussion of 
the Company’s corporate structure. 

2. Summary of Significant Accounting Policies 

Basis of Presentation 

These consolidated financial statements are prepared in accordance with accounting principles generally accepted in the 
United  States  ("GAAP").  These  consolidated  financial  statements  include  the  accounts  of  the  Company,  MethylGene  and 
MethylGene US Inc. All significant inter-company transactions, balances and expenses have been eliminated upon consolidation. 

Mirati was incorporated under the laws of the State of Delaware on April 29, 2013. The Company was created to enter 

into an arrangement agreement described below. 

On May 8, 2013, the Company's Board of Directors approved and the Company entered into an arrangement agreement 
with MethylGene. Subject to the terms and conditions of the arrangement agreement, which was consummated on June 28, 2013, the 
shareholders of MethylGene received one share of the Company's common stock in exchange for every 50 common shares of 
MethylGene, which had the effect of a 50 for 1 reverse split of the common shares pursuant to a court-approved plan of arrangement 
under Section 192 of the Canada Business Corporations Act. Such transaction is referred to herein as the Arrangement. In addition, 
all outstanding options and warrants to purchase common shares of MethylGene became exercisable on a 50-for-1 basis for shares 
of our common stock, and a proportionate adjustment was made to the exercise price or conversion price, as applicable. The 
accompanying financial statements and notes to the financial statements give retroactive effect to the reverse split of our common 
stock  for  all  periods  presented.    Upon  completion  of  the  Arrangement,  MethylGene  became  the  Company's  wholly-owned 
subsidiary. The shares of the Company's common stock issued at the closing of the Arrangement were issued in reliance upon the 
exemption from registration under Section 3(A)(10) of the Securities Act of 1933, as amended.  

These consolidated financial statements are presented in U.S. dollars, which effective January 1, 2013, is also the functional 

currency of the Company. 

Use of Estimates 

The preparation of the Company's audited consolidated financial statements requires management to make estimates and 
assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of 
the financial statements and the reported amounts of expenses during the reporting period. 

Reported amounts and note disclosures reflect the overall economic conditions that are most likely to occur and anticipated 
measures management intends to take.  Actual results could differ materially from those estimates. Estimates and assumptions are 
reviewed quarterly.  Any revisions to accounting estimates are recognized in the period in which the estimates are revised and in any 
future periods affected. 

60 

 
 
 
 
 
 
 
 
 
 
 
 
Cash, Cash Equivalents and Short-term Investments 

Cash and cash equivalents consist of cash and highly liquid securities with original maturities of ninety days or less. 
Investments with an original maturity of more than ninety days are considered short-term investments and have been classified by 
management as available-for-sale. These investments are classified as current assets, even though the stated maturity date may be 
one year or more beyond the current balance sheet date, which reflects management’s intention to use the proceeds from sales of 
these securities to fund its operations, as necessary. Such investments are carried at fair value, with unrealized gains and  losses 
included as a separate component of stockholders’ equity. Realized gains and losses from the sale of available-for-sale securities or 
the  amounts,  net  of  tax,  reclassified  out  of  accumulated  other  comprehensive  income,  if  any,  are  determined  on  a  specific 
identification basis. 

Concentration of Credit Risk 

The Company invests its excess cash in accordance with its investment policy.  The Company's investments are comprised 
primarily of commercial paper and debt instruments of financial institutions, corporations, U.S. government-sponsored agencies and 
the U.S. Treasury. The Company mitigates credit risk by maintaining a diversified portfolio and limiting the amount of investment 
exposure as to institution, maturity and investment type. Financial instruments that potentially subject the Company to significant 
credit risk consist principally of cash equivalents and short-term investments. 

Foreign Currency Transactions 

Foreign currency transactions are initially recorded by the Company using the exchange rates prevailing at the date of the 
transaction. At the balance sheet date, monetary assets and liabilities denominated in foreign currencies are translated at the period-
end rates of exchange. Non-monetary assets and liabilities are translated at the historical exchange rates. Exchange gains and losses 
arising from the translation of foreign currency items are included in other income (expense) in the consolidated statements  of 
operations and comprehensive loss. The Company recognized net foreign exchange losses of $0.2 million, $1.3 million and an 
immaterial amount in other income (expense) in the consolidated statement of operations and comprehensive loss for the years 
ended December 31, 2014,  2013 and 2012, respectively. 

Property and Equipment 

Property and equipment is stated at historical cost less accumulated depreciation. Historical cost includes expenditures that 
are directly attributable to the acquisition of the items. All repairs and maintenance are charged to net loss during the financial period 
in which they are incurred. 

Depreciation of property and equipment is calculated using the straight-line method over the estimated useful lives of  

the assets, as follows: 

Computer equipment......................   3 years 

Office and other equipment ...........   6 years 

Laboratory equipment ....................   6 years 

Leasehold improvements ...............   The lesser of the lease term or the life of the asset 

On disposal or impairment of property and equipment, the cost and related accumulated depreciation is removed from the 

consolidated financial statements and the net amount, less any proceeds, is included in net loss. 

Impairment of Long-Lived Assets 

The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the 
carrying value of an asset may not be recoverable. If such circumstances are determined to exist, an estimate of undiscounted future 
cash flows produced by the long-lived asset, including its eventual residual value, is compared to the carrying value to determine 
whether impairment exists. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the 
assets, the assets are written-down to their estimated fair values. Fair value is estimated through discounted cash flow models to 
project cash flows from the asset. The Company recognized immaterial impairment charges related to property and equipment for 
the years ended December 31, 2014 and 2013, and no impairment charges in 2012. 

Reclassification of Warrants 

In 2011 and 2012, MethylGene issued common stock warrants in connection with the issuance of common stock through 
private placements (referred to as the 2011 Warrants and the 2012 Warrants). The exercise prices of the 2011 and 2012 Warrants 
were denominated in Canadian dollars. Upon the issuance of the 2011 and 2012 Warrants, the net proceeds were allocated to 

61 

 
 
 
 
 
 
 
 
common stock and  warrants  based on their relative fair values, and the  fair  value of the issued common stock  warrants  was 
calculated  utilizing  the  Black-Scholes  option-pricing  model.  The  allocated  fair  value  was  then  recorded  as  warrants  within 
stockholders’ equity on the consolidated balance sheet. 

Effective January 1, 2013, the Company changed its functional currency which changed how the 2011 and 2012 warrants 
are accounted for as they continued to have exercise prices denominated in Canadian dollars. Upon the change in functional 
currency, the warrants were classified as a current liability and a warrant liability of $16.2 million which represented the fair market 
value of the warrants at that date in accordance with accounting standards.  The initial fair value recorded as warrants within 
stockholders’ equity of $11.2 million was reversed. The change in fair value related to periods prior to January 1, 2013 of $5.0 
million was recorded as an adjustment to accumulated deficit. At each reporting period subsequent to January 1, 2013, the fair value 
of the warrant liability was recalculated and any corresponding increase or decrease to the warrant liability was recorded as change 
in fair value of warrant liability on the consolidated statement of operations and comprehensive loss. The estimated fair value was 
determined using the Black-Scholes option-pricing model based on the estimated value of the underlying common stock at the 
valuation measurement date, the remaining contractual term of the warrants, risk-free interest rates, expected dividends and expected 
volatility of the price of the underlying common stock.   

During the second half of 2014, the Company amended all of its outstanding warrant agreements to allow for the warrants 
to be denominated in U.S. Dollars. As a result of this amendment, the amended warrants qualified for equity classification and were 
reclassified into stockholders’ equity at their fair value as of the amendment date and revaluations of fair value are no longer 
required. 

Prior to the amendments, for all of the warrants classified as liabilities during the relevant periods, the Company recorded 
warrant valuation expense of $4.5 million and $19.8 million for the years ended December 31, 2014 and 2013, respectively.  No 
such expense was recorded for the year ended December 31, 2012 as the functional currency was the Canadian dollar. 

Reclassification of Share-Based Compensation Liability 

The Company granted stock options denominated in Canadian dollars under its 1997 Equity Plan to Canadian and United 
States, or US, based employees and directors until July 26, 2013. Following the delisting of the Company’s shares from the Toronto 
Stock Exchange, the options denominated in Canadian dollars that were granted to US-based employees and US-based directors 
were subject to liability accounting ("liability options") with fair value calculated using the Black-Scholes option-pricing model. The 
Company revalued the liability options as of July 26, 2013 and recorded a share-based compensation liability of $1.1 million with a 
corresponding reduction of additional paid-in capital. 

At each reporting period subsequent to July 26, 2013, the Company adjusted the fair value of the liability options and any 
corresponding increase or decrease to the liability was recorded as either a reduction  of additional paid in capital or as stock 
compensation expense on the consolidated statement of operations and comprehensive loss, as appropriate. During the year ended 
December 31, 2013 these fair value adjustments resulted in an increase to additional paid in capital of $0.3 million and total stock 
compensation expense of $1.4 million. Effective November 30, 2013 the Company amended the agreements underlying the liability 
options such that the exercise price was converted from Canadian dollars to the equivalent US dollar exercise price by applying the 
exchange rate for the conversion of Canadian dollars into U.S. dollars based on the Bank of Canada’s noon buying rate for one U.S. 
dollar on the date the option was granted.  The fair value of the liability options as of November 30, 2013 was $2.2 million and was 
reclassified from share-based compensation liability to additional paid-in capital. 

Share-Based Compensation 

The Company has a stock option compensation plan in which the fair value of stock options granted is determined at the 
date of the grant using the Black-Scholes option-pricing model and is expensed over the vesting period of the options. Share-based 
compensation is recognized using the graded accelerated vesting method.  In determining the expense, the Company deducts the 
number of options that are expected to be forfeited at the time of a grant and revises this estimate, if necessary, in subsequent years if 
actual forfeitures differ from those estimated. The stock-based compensation expense attributable to awards under the Company's 
2013 Employee Stock Purchase Plan ("ESPP") was also determined using the Black-Scholes option pricing model. 

The determination of the fair value of share-based compensation awards utilizing the Black-Scholes model is affected by 
the Company's stock price and a number of assumptions, including but not limited to expected stock price volatility over the term of 
the awards and the expected term of stock options. Changes in the assumptions can materially affect the fair value estimates. 

62 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Investment Tax Credits 

The Company's accounts include claims for investment tax credits ("ITCs") relating to scientific research and experimental 
development activities of the Company. The qualification and recording of these activities for investment tax credit purposes are 
established by the Canadian federal and Provincial Tax Acts and are subject to audit by the taxation authorities. Refundable ITCs are 
reflected as reductions of expenses or reductions of the cost of the assets to which they relate when there is reasonable assurance that 
the assistance will be received and all conditions have been complied with. The non-refundable ITCs are carried forward for a time 
and will be recognized when it is more likely than not that the Company will become subject to Canadian federal taxes, at which 
time, said ITCs are applied as a reduction of tax expense. As operations in Canada ceased in early 2014, there were no new 
investment tax credits earned for the year ended December 31, 2014. 

Research and Development Expenses 

Research and development expenditures are charged to net loss in the period in which they are incurred and are comprised 
of the following types of costs incurred in performing research and development activities: salaries and benefits, share-based 
compensation expense, allocated overhead and occupancy costs, clinical trial and related clinical manufacturing costs, contract 
services, and other outside costs. 

Income Taxes 

Income taxes have been accounted for using the asset and liability method. Under the asset and liability method, deferred 
tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial carrying 
amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax 
assets and liabilities are measured using enacted tax rates applicable to taxable income in the years in which those temporary 
differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is 
recognized in income in the period that includes the enactment date. A valuation allowance against deferred tax assets is recorded if, 
based upon the weight of all available evidence, it is more likely than not that some or all of the deferred tax assets will not be 
realized. For uncertain tax positions that meet "a more likely than not" threshold, the Company recognizes the benefit of uncertain 
tax positions in the consolidated financial statements. 

Segment Reporting 

Operating segments are components of an enterprise about which separate discrete financial information is available for 
evaluation by the chief operating decision-maker for purposes of making decisions regarding resource allocation and assessing 
performance. To date, the Company has viewed its operations and managed its business as one segment operating primarily in the 
United States. 

Fair Value Measurements 

The Company has certain financial assets and liabilities recorded at fair value which have been classified as Level 1, 2 or 3 

within the fair value hierarchy as described in the accounting standards for fair value measurements. 

The authoritative guidance for fair value measurements defines fair value as the exchange price that would be received for an 
asset or paid to transfer a liability (an exit price) in the principal or the most advantageous market for the asset or liability in an 
orderly transaction between market participants on the measurement date. Market participants are buyers and sellers in the principal 
market that are (i) independent, (ii) knowledgeable, (iii) able to transact, and (iv) willing to transact. The guidance prioritizes the 
inputs used in measuring fair value into the following hierarchy: 

•   Level 1-  Quoted prices (unadjusted) in active markets for identical assets or liabilities; 

•   Level 2-  Inputs other than quoted prices included within Level 1 that are either directly or indirectly observable; and 

•   Level 3-  Unobservable inputs in which little or no market activity exists, therefore requiring an entity to develop its 

own assumptions about the assumptions that market participants would use in pricing. 

63 

 
 
 
 
 
 
 
 
The following table summarizes the assets and liabilities measured at fair value on a recurring basis (in thousands): 

December 31, 
 2014 

Level 1 

Level 2 

Level 3 

Assets 
Cash and cash equivalents 

Short-term investments 

Assets 
Cash and cash equivalents 

Short-term investments 

Liabilities 
Warrant liability 

$ 

$ 

$ 

$ 

$ 

$ 

6,593     $ 
22,710    
29,303     $ 

4,590     $ 
—    
4,590     $ 

2,003    $ 
22,710    
24,713     $ 

December 31, 
 2013 

Level 1 

Level 2 

Level 3 

14,235     $ 
47,835    
62,070     $ 

12,431    $ 
—   
12,431    $ 

1,804     $ 
47,835    
49,639     $ 

—  
—  
—  

—  
—  
—  

33,407     $ 
33,407     $ 

—    $ 
—     $ 

—    $ 
—     $ 

33,407  
33,407  

The Company’s investments in Level 1 assets are valued based on publicly available quoted market prices for identical 
securities as of December 31, 2014 and December 31, 2013. The Company determines the fair value of Level 2 related securities 
with the aid of valuations provided by third parties using proprietary valuation models and analytical tools. These valuation models 
and analytical tools use market pricing or prices for similar instruments that are both objective and publicly available, including 
matrix pricing or reported trades, benchmark yields, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, 
bids and/or offers. There were no transfers between fair value measurement levels for the years ended December 31, 2014 and 2013. 
The following table presents a rollforward of the fair value of the warrant liability, which included Level 3 measurements 

(in thousands): 

Warrant liability: 
Balance at January 1, 2013 

Fair value upon reclassification of balance 
as of January 1, 2013 
Change in fair value of warrant liability 
included in net loss 

    Fair value of warrants exercised 

Balance at December 31, 2013 

Change in fair value of warrant liability 
included in net loss 

    Fair value of warrants exercised 

Fair Value 
Measurements at 
Reporting Date 
Using Significant 
Unobservable 
Inputs (Level 3) 

  $ 

—  

16,194 

19,799 
(2,586 ) 
33,407  

4,517 
(993 ) 

Reclassification of warrants to stockholders' 
equity 

Balance at December 31, 2014 

(36,931 ) 
—  

  $ 

The Company estimated the fair value of warrants at the time of issuance and subsequent remeasurement through the date 
of reclassification into equity using the Black-Scholes option-pricing model at each reporting date, using the following inputs: the 
risk-free interest rates; the expected dividend rates; the remaining expected life of the warrants; and the expected volatility of the 
price of the underlying common stock. The estimates are based, in part, on subjective assumptions and changes to these assumptions 
could have a significant impact on the fair value of the warrants. 

64 

 
 
 
 
 
   
   
   
 
 
 
   
   
   
 
 
 
 
 
 
   
   
   
 
 
 
   
   
   
 
   
   
   
 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following assumptions were used in the Black-Scholes option-pricing model as of the warrant amendments dates 

to determine the fair value of the warrants to reclassify into equity: 

Risk-free interest rate 
Volatility 
Dividend yield 
Expected life in years 

September 2014 

December 2014 

2011 Warrants 

2012 Warrants 

2011 Warrants 

1.2 %  
108.6 %  
—  
1.6   

1.2 %  
100.8%  
—  
3.2  

1.0 % 
62.8% - 63.9% 
—  
1.3 

The following assumptions were used in the Black-Scholes option-pricing model to determine the fair value of the warrant 
liability as of December 31, 2013.  All 2011 and 2012 warrants were amended and did not require a valuation as of December 31, 
2014. 

Risk-free interest rate 
Volatility 
Dividend yield 
Expected life in years 

December 31, 2013 

  2011 Warrants 

2012 Warrants 

1.2%  
112.0%  
— 
2.3   

1.6 %  
115.9 %  
—  
3.9   

Net Loss Per Share 

Basic  net  loss  per  common  share  is  calculated  by  dividing  the  net  loss  attributable  to  common  stockholders  by  the 
weighted-average number of common shares outstanding during the period, without consideration for potentially dilutive securities. 
Diluted net loss per share is computed by dividing the net loss attributable to common stockholders by the weighted-average number 
of common shares and potentially dilutive securities outstanding for the period. Common share equivalents outstanding, determined 
using the treasury stock  method, are comprised of shares that may be issued under the  Company’s stock option and  warrant 
agreements. 

The following table presents the weighted average number of potentially dilutive securities not included in the calculation 

of diluted net loss per share due to the anti-dilutive effect of the securities: 

Common stock options 
Common stock warrants 

Total 

3. Recent Accounting Pronouncements 

Year ended 
December 31, 

2014 
253,595    
1,515,445    
1,769,040    

2013 

495    
644,426    
644,921    

2012 
15,663    
690,046    
705,709    

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board ("FASB") or 
other standard setting bodies that are adopted by the Company as of the specified effective date. Unless otherwise discussed, the 
Company believes that the impact of recently issued standards that are not yet effective will not have a material impact on our 
consolidated financial position or results of operations upon adoption. 

In May 2014, the FASB issued Accounting Standard Update ("ASU") 2014-09, Revenue from Contracts with Customers 
(Topic 606), which will replace numerous requirements in U.S. GAAP, including industry-specific requirements, and provide 
companies with a single revenue recognition model for recognizing revenue from contracts with customers. The core principle of the 
new standard is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an 
amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The new 
standard will be effective for annual reporting periods beginning after December 15, 2016, including interim periods within that 

65 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
reporting  period.  The  Company  is  currently  evaluating  the  impact  that  this  standard  will  have  on  its  consolidated  financial 
statements. 

In August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements-Going Concern (Subtopic 205-40): 
Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. Under the new guidance, management will be 
required  to  assess  an  entity’s  ability  to  continue  as  a  going  concern,  and  to  provide  related  footnote  disclosures  in  certain 
circumstances. The provisions of this ASU are effective for annual periods beginning after December 15, 2016, and for annual and 
interim periods thereafter, early adoption is permitted. The Company has not elected to early adopt and is currently evaluating the 
potential changes from this ASU to its future financial reporting and disclosures. 

4.  Investments 

The following tables summarize our short-term investments (in thousands): 

Corporate debt securities (1) 
Commercial paper (1) 

Government sponsored enterprise (1) 
Corporate debt securities (1) 
Commercial paper (1) 
Guaranteed investment certificates (2) 

Maturity         
(in years) 
1 year or less 
1 year or less 

Amortized 
cost 
21,208  
1,500  
22,708  

As of December 31, 2014 

Gross 
unrealized 
gains 

Gross 
unrealized 
losses 

3  
—  
3  

(1 ) 
—  
(1 ) 

Estimated 
fair value 
21,210  
1,500  
22,710  

Maturity         
(in years) 
2 years or less   
2 years or less   
1 year or less 
1 year or less 

Amortized 
cost 
3,001  
31,319  
8,485  
5,046  
47,851  

As of December 31, 2013 

Gross 
unrealized 
gains 

Gross 
unrealized 
losses 

—  
—  
12  
—  
12  

(3 ) 
(22 ) 
—  
(3 ) 
(28 ) 

Estimated 
fair value 
2,998  
31,297  
8,497  
5,043  
47,835  

(1) Investments are designated as available-for-sale investments. 
(2) Investments are designated as trading investments. 

Unrealized  gains  and  losses  on  available-for-sale  securities  are  included  as  a  component  of  comprehensive  loss. At 
December 31, 2014, the Company did not have any securities in material unrealized loss positions.  The Company reviews its 
investments to identify and evaluate investments that have an indication of possible other-than-temporary impairment. Factors 
considered in determining whether a loss is other-than-temporary include the length of time and extent to which fair value has been 
less than the cost basis, the financial condition and near-term prospects of the investee, and the Company’s intent and ability to hold 
the investment for a period of time sufficient to allow for any anticipated recovery in market value. The Company does not intend to 
sell any investments prior to recovery of their amortized cost basis for any investments in an unrealized loss position. 

5. Other Current Assets 

Other current assets consisted of the following (in thousands): 

Prepaid expenses 
Refundable research and development tax credits 
Security deposits and other receivables 
Interest receivables 

66 

December 31, 

2014 

2013 

(in thousands) 
1,827    
809    
622    
96    
3,354     $ 

667  
809  
506  
163  
2,145  

$ 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6. Property and Equipment, Net 

Property and equipment consisted of the following (in thousands): 

Computer equipment 

Office and other equipment 

Laboratory equipment 

Leasehold improvements 

Less: Accumulated depreciation 

December 31, 

2014 

2013 

(in thousands) 
329    $ 
56   
346   
—   
731    $ 
(235)  
496    $ 

1,534  
122  
1,794  
53  
3,503  
(3,181 ) 
322  

$ 

$ 

$ 

The  Company  incurred  depreciation  expense  of  $0.2  million,  $0.2  million  and  $0.1  million  for  the  years  ended 
December 31, 2014, 2013 and 2012, respectively. During the year ended December 31, 2014, in connection with the Company's 
closure of its Canadian office as described further in Note 8, the Company disposed of several fully depreciated assets with a gross 
book value of $3.2 million that were no longer in use.  

7. Accounts Payable and Accrued Liabilities 

Accounts payable and accrued liabilities consisted of the following (in thousands): 

Accounts payable 

Accrued expenses 

Accrued compensation and benefits 

8. Restructuring 

December 31, 

2014 

2013 

(in thousands) 
1,655     $ 
2,327    
1,414    
5,396     $ 

1,302  
2,335  
1,608  
5,245  

$ 

$ 

On October 1, 2013, the Company announced a plan to terminate approximately 75% of its total workforce in connection with 
the closing of its Montreal, Quebec and Princeton, New Jersey offices (the "Restructuring") due to the consolidation of Company 
operations to the San Diego facility. Restructuring costs were comprised of employee separation and facilities closure related costs 
and were reported as a separate line item in the accompanying consolidated statement of operations and comprehensive loss. A 
rollforward of the accrued restructuring liability is presented below (in thousands): 

Balance as of October 1, 2013 
Accrued restructuring charges 
Payments 

Balance as of December 31, 2013 
Accrued restructuring charges 
Payments 

Balance as of December 31, 2014 

 $ 

 $ 

—   
1,025   
(729)   
296   
334   
(630)   
—   

The restructuring activities associated with the office closures were substantially complete as of March 31, 2014, and 

all restructuring costs incurred have been paid to date. 

67 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9. Stockholders' Equity 

Common Stock 

As of December 31, 2014, the following shares were reserved for future issuance: 

Common stock options outstanding and available for future grant 
Warrants to purchase common stock 

Employee Stock Purchase Plan 

December 31, 

2014 
1,891,107  
2,465,713  
300,000  
4,656,820  

Warrants 

As of December 31, 2014 the following warrants for common stock were issued and outstanding: 

Issue date 

Expiration date 

Exercise price      

(Denominated in 
US Dollars) 

Number of warrants 
outstanding 

April 4, 2011 
November 21, 2012 

  April 4, 2016 
  November 21, 2017 

  $ 
  $ 

6.74    
7.86    

1,397,921  
1,067,792  
2,465,713  

On April 4, 2011 and November 21, 2012 the Company's wholly owned subsidiary,  MethylGene, completed private 
placement financing transactions which resulted in the issuance of common stock warrants.  The April 4, 2011 common stock 
warrants were issued with an exercise price of CND$7.46 and the November 21, 2012 common stock warrants were issued with an 
exercise price of CND$8.70.  During the last half of 2014, the Company amended all of these outstanding warrant agreements to 
allow for the warrants to be denominated in U.S. Dollars.  

During the year ended December 31, 2014, warrants for 73,964 shares of the Company's common stock were exercised via 

cashless exercises and the Company issued a total of 43,526 shares of common stock. 

10. Share-Based Compensation 

Equity Incentive Plan 

The Company has in place a stock option plan (the "Stock Option Plan") for the benefit of employees, directors, officers 
and consultants of the Company.  In May 2013 our Board of Directors adopted the 2013 Equity Incentive Plan (the "2013 Plan"). 
The 2013 Plan was approved by our stockholders in connection with the Arrangement.  The 2013 Plan is a continuation of and 
successor to the Stock Option Plan and no further grants will be made under the Stock Option Plan.  As of December 31, 2014, there 
were 0.4 million stock options available to be issued. 

To date, share-based compensation awards under either the Stock Option Plan or the 2013 Plan consist of incentive and 
non-qualified stock options. Stock options granted under each of the plans must have an exercise price equal to at least 100% of the 
fair  market  value of our common  stock on the date of  grant and generally vest over  four  years.  The Stock Option  Plan has 
contractual terms ranging from five to seven years and the 2013 Plan has contractual terms ranging from seven to ten years.   

68 

 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
The following table summarizes our stock option activity and related information for the year ended December 31, 

2014: 

Balance, December 31, 2013 

Granted 

Exercised 

Canceled/forfeited 

Expired 

Balance, December 31, 2014 

Options exercisable at December 31, 2014 

Options vested and expected to vest at December 31, 2014 

Weighted 
average 
exercise 
price 

Weighted-
Average 
Remaining 
Contractual 
Term (years)   

Aggregate 
Intrinsic 
Value 
(millions) 

11.13     
18.64     
11.20     
15.44     
55.80     
14.00     
12.25   
14.89   

7.0   $ 

8.1   $ 

3.21  
6.83  

Number of 
options 
968,923    $ 
599,410    $ 
(76,224)   $ 

(34,640)   $ 

(2,609)   $ 
1,454,860    $ 
431,088    $ 
1,383,082   $ 

The total intrinsic value of stock options exercised was $0.6 million and $0.2 million for the years ended December 31, 
2014 and 2013, respectively. The Company received total cash of $0.9 million and $0.5 million for the exercise of options for the 
years ended December 31, 2014 and 2013. There were no options exercised during the year ended December 31, 2012. The total fair 
value of options vested during the years ended December 31, 2014, 2013, and 2012 was $3.0 million, $2.0 million, and $2.4 million 
respectively. Upon option exercise, the Company issues new shares of our common stock.  

Total share-based compensation expense by operating statement classification is presented below (in thousands): 

Research and development expense 

General and administrative expense 

Year ended December 31, 

2014 

2013 

2012 

2,565    $ 
4,485   
7,050    $ 

245    $ 
2,947   
3,192    $ 

817  
1,192 
2,009  

$ 

$ 

In the years ended December 31, 2014, 2013 and 2012, no share-based compensation expense was capitalized and there 

were no recognized tax benefits associated with the share-based compensation charge. 

The fair value of options granted is estimated at the date of grant using the Black-Scholes option pricing model.  The 
assumptions used for the specified reporting periods and the resulting estimates of weighted-average estimated fair value per share 
of options granted during those periods are as follows: 

Risk-free interest rate 

Dividend yield 

Volatility factor 

Expected term (in years) 

Weighted average estimated fair value per share 

Year Ended 
December 31, 

2014 
2.1% 

2013 
2.0% 

2012 
1.2% 

  —% 

  —% 

  —% 

113.0% 

112.9% 

116.4% 

6.7 

$16.09 

7.0 

$9.75 

4.4 

$9.00 

Risk-Free Interest Rate - The risk-free interest rate is the rate for periods equal to the expected term of the stock option 
based on either the Canadian Treasury yield (for grants prior to July 16, 2013), or U.S. Treasury zero-coupon bonds (for grants after 
July 16, 2013). 

Dividend Yield - The dividend yield is based on the Company’s history and expectation of dividend payouts. The Company 

has not paid, and does not intend to pay, dividends. 

Volatility  Factor  -  The  expected  volatility  assumption  was  determined  by  examining  the  historical  volatility  of  the 

Company's stock. 

69 

 
 
 
 
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Expected  Term  -  The  expected  term  represents  the  weighted  average  period  the  stock  options  are  expected  to  be 
outstanding. Prior to the fourth quarter of 2013, the Company estimated the life of the options using historical data as well as various 
assumptions regarding the Company's expected progress on its development programs. As a result of the Arrangement, beginning in 
the fourth quarter of 2013, the Company began to use the simplified method for estimating the expected term as provided by the 
Securities and Exchange Commission. The simplified method calculates the expected term as the average time-to-vesting and the 
contractual life of the options.  The Company believes this methodology is more appropriate as the Company's historical stock 
option activity is no longer predictive of future activity due to the Arrangement, the Company's listing on NASDAQ and subsequent 
delisting from the TSX and the organizational changes announced on October 1, 2013. 

The total compensation cost not yet recognized as of December 31, 2014 related to non-vested option awards was $7.1 

million which will be recognized over a weighted-average period of 1.5 years. 

2013 Employee Stock Purchase Plan 

In  May 2013,  the  Company's  Board  of  Directors  adopted  the  ESPP.  The  ESPP  was  approved  by  the  Company's 
stockholders in connection with the Arrangement.  In December 2014, the ESPP became effective and the first purchase period 
began. The ESPP permits eligible employees to make payroll deductions to purchase up to $25,000 of the Company’s common stock 
on regularly scheduled purchase dates at a discount. Offering periods under the ESPP are not more than six months in duration and 
shares are purchased at 85% of the lower of the closing price for the Company’s common stock on the first day of the offering 
period or the date of purchase. The ESPP initially authorized the issuance of 300,000 shares of the Company’s common stock 
pursuant to rights granted to employees for their payroll deductions.  As of December 31, 2014, no shares have yet been issued out 
of the plan. 

11.  Employee Benefit Plan 

The Company has a defined contribution 401(k) plan (the Plan) for all employees.  Employees are eligible to participate in 
the Plan if they are at least 21 years of age or older.  Under the terms of the Plan, employees may make voluntary contributions as a 
percentage of compensation. The Company matches up to 4% of an employee's contributions, subject to a limit of $2,500 per year.  
During the years ended December 31, 2014, expense associated with the Company's matching contribution totaled $0.1 million and 
an immaterial amount for the years ended December 31, 2013 and 2012, respectively.   

12. Income Taxes 

The Company's provisions for income tax benefit (expense) are as follows (in thousands): 

Current: 
Federal 
State 
Canada 
Total current tax expense (benefit) 

Year ended December 31, 

2014 

2013 

2012 

$ 

$ 

—     $ 
—    
—    
—     $ 

23    $ 
—    
—    
23    $ 

(30 ) 
(9 ) 
—  
(39 ) 

70 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Tax Expense or Benefit 

The differences between the effective income tax rate and the statutory tax rates during the years ended 2014, 2013 

and 2012 are as follows (in thousands): 

Net loss before tax 
Statutory combined US federal and state tax rate (2012 - statutory 
combined Canadian federal and provincial tax rate) 
Statutory federal and provincial taxes 
Increase (decrease) in taxes recoverable resulting from: 

Effect of change in valuation allowance 

Non-deductible share-based compensation 

Non-deductible warrant expenses for tax purposes 

Tax credits 

Share issue costs - temporary difference 

Share issue costs - permanent difference 

Effect of foreign jurisdiction tax expense 

Differential in income tax rates of foreign subsidiary 

Other differences 

Income tax expense (benefit) 

Year Ended December 31, 

2014 
(43,698 )    $ 

2013 
(52,882 )    $ 

2012 
(20,247 ) 

$ 

39.83 %  

39.83 % 

26.90 %

$ 

(17,405 )    $ 

(21,063 )    $ 

(5,446 ) 

12,273  
930  
1,799  
(180 )   

(184 )   
—  
—  
3,047  
(280 )   
—  

  $ 

8,537  
1,085  
8,403  

(96 )   

(184 )   
206  
—  
3,059  
30  
(23 )    $ 

5,145  
539  
—  
(70 ) 

(183 ) 
—  
39  
—  
15  
39  

$ 

The combined statutory tax rate used for fiscal 2014 and 2013 differs from the previous year due to the change in home 
jurisdiction under the consolidation process pursuant to the plan of arrangement agreement, which was consummated on June 28, 
2013. 

Deferred Tax 

The following table summarizes the significant components of our deferred tax assets (in thousands): 

Deferred tax assets: 

Tangible and intangible depreciable assets 

Stock compensation 

Manufactured drug product inventory to be used in research 

Provisions 

Financing fees 

Net operating loss carry forwards 

Scientific research and experimental development expenditures 

Research and development tax credits 

Total gross deferred tax assets 

Less valuation allowance 

Net deferred tax assets 

December 31, 

2014 

2013 

$ 

185     $ 

2,360    
1,425    
554    
261    
23,243    
5,715    
266    
34,009    
(34,009 )  

$ 

—     $ 

874  
—  
1,459  
93  
445  
13,099  
5,766  
—  
21,736  
(21,736 ) 
—  

Total valuation allowance increased by $12.3 million for the year ended December 31, 2014. The Company has determined 
that it is more likely than not that it will not recognize the benefits of its US federal and state deferred tax assets and its Canadian 
federal and provincial deferred tax assets and, as a result, has established a full valuation allowance against its deferred tax assets as 
of December 31, 2014. 

For  Canadian  federal  income  tax  purposes,  the  Company's  Canadian  federal  scientific  research  and  experimental 
development expenditures amounted to $20.1 million, $20.7 million and $15.2 million for the years ended December 31, 2014, 2013 
and 2012, respectively and for provincial income tax purposes amounted to $22.7 million, $22.4 million and $16.8 million for the 

71 

 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
years ended December 31, 2014, 2013 and 2012, respectively. As operations in Canada ceased in during 2014, the expenditures 
incurred for the year ended December 31, 2014 were much lower than previous years. These expenditures are available to reduce 
future taxable income and have an unlimited carry forward period. Scientific research and development expenditures are subject to 
verification by the taxation authorities, and accordingly, these amounts may vary by a material amount. 

The Company also has accumulated share issue expenses that have not been deducted for income tax purposes 
amounting to approximately $1.0 million, $1.7 million and $2.4 million for the years ended December 31, 2014, 2013 and 2012, 
respectively. The benefits of these expenses have not been recognized in the financial statements.  

The Company's net operating loss carry forwards, or NOLs, for US federal and state income taxes were $10.3 
million  and  $9.5  million,  respectively,  for  the  year  ended  December  31,  2014.  In  addition,  the  Company  has  research  and 
development tax credit carryforwards for federal and state income tax purposes as of December 31, 2014 of $0.2 million and $0.1 
million, respectively. The Company's NOLs for Canadian federal and provincial income tax purposes, were $71.6 million and $71.0 
million, respectively, for the year ended December 31, 2014.  

The NOLs are available to offset future taxable income from US federal and state tax sources and Canadian federal and 
provincial tax sources and the tax benefits of which have not been recognized in the consolidated financial statements. The NOLs 
expire as follows (in thousands): 

Expires in: 

US 

Canada 

Federal 

State 

Federal 

  Provincial 

2030 $ 
2031 
2032 
2033 
2034 

—     $ 
—    
—    
3,261    
7,012    

—     $  5,907     $  5,985  
7,066  
7,059    
—    
12,433  
13,312    
—    
19,385  
18,623    
2,286    
26,149  
26,741    
7,185    
$  10,273     $  9,471     $  71,642     $  71,018  

The future utilization of the US federal and state NOLs carryforwards to offset future taxable income may be subject to an 
annual limitation as a result of ownership changes that may have occurred previously or may occur in the future.  The Tax Reform 
Act of 1986, or the Act, limits a company's ability to utilize certain tax credit carryforwards and net operating loss carryforwards in 
the event of a cumulative change in ownerships in excess of 50% as defined in the Act.  The Canadian Federal and Provincial Tax 
Acts maintain similar rules in the case of acquisition of control. 

The Company files income tax returns in the US (federal and state) and Canada (federal and provincial). The Company’s 
U.S. operations have not been audited for any open taxation years. The Company has experienced losses for U.S. tax purposes and 
therefore, the taxation authorities may review any loss year, if and when the losses are utilized. 

The Company's Canadian operations have been audited for provincial tax purposes up to and including December 31, 2009. 
For Canadian federal tax purposes, the Company remains subject to audit for the December 31, 2010 and subsequent taxation years. 
Where taxation years remain open, the Company considers it reasonably possible that issues may be raised or tax positions agreed to 
with the taxation authorities, which may result in increases or decreases of the balance of non-refundable ITCs and NOLs. However, 
an estimate of such increases and decreases cannot be currently made. 

A reconciliation of the beginning and ending amounts of unrecognized tax positions are as follows (in thousands): 

Unrecognized tax positions, beginning of year 
Gross decrease — current period tax positions 

$ 

Gross increase — current period tax positions 

Gross decrease — prior period tax positions 

Gross increase — prior period tax positions 

Unrecognized tax positions, end of year 

$ 

Federal 

December 31, 

Provincial/State 

December 31, 

2014 

2013 

2012 

2014 

2013 

2012 

43     $ 
—   
—   
(13)  
5   
35     $ 

42     $ 
—    
1    
—    
—    
43     $ 

6     $ 
—    
12    
—    
—    
18     $ 

2     $ 
—    
—    
—    
4    
6     $ 

1  
—  
1  
—  
—  
2  

35     $ 
—   
35   
(28)  
—   
42     $ 

72 

 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Included in the balance of unrecognized tax positions at December 31, 2014 is $0.1 million and an immaterial amount for 
2013 and 2012, that if recognized, would not impact the Company's income tax benefit or effective tax rate as long as the Company's 
deferred tax assets remain subject to a full valuation allowance. The Company does not expect any significant increases or decreases 
to the Company's unrecognized tax positions within the next 12 months.  

The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense. The Company 
had no accrual for interest or penalties on tax matters as at December 31, 2014 and 2013 and the Company had no ongoing tax audits 
as of December 31, 2014. 

13. Investment Tax Credits 

The Company is eligible to claim Canadian federal and provincial ITCs for eligible scientific research and development 
expenditures. The Company records ITCs based on management's best estimates of the amount to be recovered and ITCs claimed 
are subject to audit by the taxation authorities and accordingly, may vary by a material amount. 

The Company recorded provincial refundable ITCs as a reduction of research and development expenditures of $0.9 million 
and $1.7 million (including a $1.1 million favorable adjustment resulting from a statutory audit), for the years ended December 31, 
2013 and 2012, respectively. The Company has an ongoing audit related to the provincial refundable ITCs for the year ended 
December  31,  2013.  The  Company  did  not  record  provincial  refundable  ITCs  as  a  reduction  of  research  and  development 
expenditures for the year ended December 31, 2014 because the primary operations of the Company were moved from Canada to 
San Diego, California in early 2014.   

The Company's non-refundable Canadian federal ITCs as of December 31, 2014 are $3.9 million, and relate to scientific 
research and development expenditures, which may be utilized to reduce Canadian federal income taxes payable in future years. The 
benefits of the non-refundable Canadian federal ITCs have not been recognized in the financial statements and will be recorded as 
reduction of tax expense when realized. 

The non-refundable investment tax credits expire as follows (in thousands): 

Expires in: 
2030 
2031 
2032 
2033 

FEDERAL ITC 

$ 

$ 

764 
1,000 
1,125 
1,018 
3,907 

73 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
14. Commitments and Contingencies 

On June 24, 2014, the Company entered into a lease agreement for approximately 18,000 square feet of completed office 
and laboratory space located in San Diego, California. The office space under the lease will serve as the Company's new corporate 
headquarters, replacing the current facilities. The lease will commence in three phases, with 2,300 square feet of space which 
commenced on July 1, 2014 at an initial monthly rent of approximately $5,900 per month, 14,000 square feet of space becoming 
available in the first quarter of 2015 at an initial monthly rent of $14,000 per month, and the final 1,600 square feet of space 
becoming available in the first quarter of 2016 at an initial monthly rent of approximately $4,200 per month.  Each portion of the 
leased property will be subject to a 3% annual rent increase following availability.  In addition to such base monthly rent, the 
Company will be obligated to pay triple net lease charges for operating expenses, taxes, insurance and utilities applicable to the 
leased property.  The lease will expire on January 31, 2018 with respect to the entire premises. Future minimum payments required 
under the lease are summarized as follows (in thousands): 

 Year Ending December 31: 

2015 

2016 

2017 

2018 

 Total minimum lease payments 

$ 

$ 

223  
290  
303  
25  
841  

Total lease expense for the years ended December 31, 2014, 2013 and 2012 was $0.4 million, $0.4 million, and $0.3 

million, respectively. 

15. Selected Quarterly Financial Data (Unaudited) 

The following is a summary of the quarterly results of the Company for the years ended December 31, 2014 and 

2013 (unaudited, in thousands, except for per share data): 

Quarter  

First 
(7,979 )   $  (10,134 )   $  (10,548 )   $ 

Second 

Third 

Fourth 
(10,443 )   $ 

  $ 

  $  (13,656 )   $  (11,038 )   $ 

(8,617 )   $ 

(10,387 )   $ 

(1.01 )   $ 

(0.82 )   $ 

(0.64 )   $ 

(0.77 )   $ 

(1.01 )  $ 

(0.82 )   $ 

(0.72 )   $ 

(0.77 )   $ 

Year Ended 

December 31, 

(39,104 ) 

(43,698 ) 

(3.24 ) 

(3.24 ) 

Quarter 

Year Ended 

First 
(8,006 )   $ 

Second 
(6,898 )   $ 

Third 
(9,209 )   $ 

(7,886 )   $ 

Fourth 

December 31, 

(4,217 )   $ 

(8,012 )   $  (29,398 )   $ 

(11,232 )   $ 

(0.42 )   $ 

(0.80 )   $ 

(2.95 )   $ 

(0.96 )   $ 

(0.68 )  $ 

(0.80 )  $ 

(2.95 )  $ 

(0.96 )  $ 

(31,999 ) 

(52,859 ) 

(4.78 ) 

(4.78 ) 

  $ 

  $ 

  $ 

  $ 

  $ 

  $ 

2014: 
Operating Loss 

Net loss 

Per common share: 

Loss per share, basic 

Loss per share, diluted 

2013: 
Operating Loss 

Net loss 

Per common share: 

Loss per share, basic 

Loss per share, diluted 

16. Subsequent Events 

Sale of Common Stock 

In February 2015, the Company completed a follow-on offering whereby it issued an aggregate 2,587,500 shares of 
common stock at $20.00 per share. Proceeds from the follow-on offering, net of underwriting discounts, commissions and offering 
expenses, were approximately $48.2 million. 

74 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has 
duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 

SIGNATURES 

Date:  March 11, 2015 

Date:  March 11, 2015 

MIRATI THERAPEUTICS, INC. 

by:  /s/ Charles M. Baum, M.D., Ph.D. 

Chief Executive Officer 

by:  /s/ Mark J. Gergen 

Executive Vice President and 

Chief Operations Officer 

POWER OF ATTORNEY 

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Charles 
M.  Baum,  Ph.D.  and  Mark  J.  Gergen  as  his  or  her  true  and  lawful  attorneys-in-fact,  and  each  of  them,  with  full  power  of 
substitution, for him or her in any and all capacities, to sign any amendments to this Annual Report on Form 10-K and to file the 
same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting 
unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing 
requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in 
person, hereby ratifying and confirming all that said attorneys-in-fact, and either of them, or his or their substitute or substitutes may 
do or cause to be done by virtue hereof. 

75 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has been 

signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. 

Signature 

Title 

Date 

/S/ CHARLES M. BAUM 
Charles M. Baum, M.D., Ph.D. 

/S/ MARK J. GERGEN 
Mark J. Gergen 

/S/ JAMIE A. DONADIO 
Jamie A. Donadio 

/S/ RODNEY LAPPE 
Rodney Lappe, Ph.D. 

Chief Executive Officer and Director (Principal 
Executive Officer) 

  March 11, 2015 

Executive Vice President, Chief Operations Officer 
(Principal Financial Officer) 

  March 11, 2015 

  Vice President, Finance (Principal Accounting Officer) 

  March 11, 2015 

  Chairman of the Board 

  March 11, 2015 

/S/ MICHAEL GREY 
Michael Grey 

  Director 

/S/ HENRY J. FUCHS 
Henry J. Fuchs, M.D. 

  Director 

/S/ CRAIG JOHNSON 
Craig Johnson 

  Director 

/S/ WILLIAM R. RINGO 
William R. Ringo 

  Director 

  March 11, 2015 

  March 11, 2015 

  March 11, 2015 

  March 11, 2015 

76 

 
 
 
 
 
   
   
 
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
 
 
 
 
 
 
 
 
 
INDEX TO EXHIBITS 

Exhibit 
number 

Description of document 

2.1 
3.1 
3.2 
4.1 
10.1 
10.2 
10.3 
10.4 
10.5+ 

10.6+ 
10.7+ 

10.12 

10.13 

10.14 

10.15+ 

10.16+ 

10.17+ 

10.18+ 

10.19 

10.2 
10.21+ 

10.22+ 
10.23+ 
21.1 
23.1 
23.2 

31.1 

31.2 

Arrangement Agreement, dated May 8, 2013, by and between MethylGene Inc. and the Registrant.(2) 
Amended and Restated Certificate of Incorporation.(1) 
Bylaws.(1) 
Form of Common Stock Certificate.(2) 
Form of Securities Purchase Agreement relating to the 2011 private placement.(1) 
Form of Securities Purchase Agreement relating to the 2012 private placement.(1) 
Form of Warrant Certificate issued in connection with the 2011 private placement.(1) 
Form of Warrant Certificate issued in connection with the 2012 private placement.(1) 
Amended and Restated Incentive Stock Option Plan.(1) 
Form of 2013 Equity Incentive Plan and Form of Stock Option Grant Notice and Form of Stock Option 
Agreement thereunder.(1) 
Form of 2013 Employee Stock Purchase Plan.(1) 
Collaboration and License Agreement, dated October 16, 2003, by and between MethylGene Inc. and 
Taiho Pharmaceutical Co. Ltd. 
Amendment Number One to Collaboration and License Agreement, dated January 25, 2005, by and 
between MethylGene Inc. and Taiho Pharmaceutical Co., Ltd. 
Letter Agreement, dated January 25, 2005, by and between MethylGene Inc. and Taiho Pharmaceutical 
Co., Ltd., relating to Collaboration and License Agreement dated October 16, 2003. 
Senior Executive Employment Agreement, dated September 24, 2012, by and among MethylGene Inc. 
and Dr. Charles M. Baum.(1) 
Employment Agreement, dated February 15, 2013, by and between MethylGene Inc. and Mark J. 
Gergen.(1) 
Amended and Restated Employment Agreement, dated July 2, 2013, by and between the Registrant and 
Dr. Charles M. Baum.(3) 
Amended and Restated Employment Agreement, dated July 2, 2013, by and between the Registrant and 
Mark J. Gergen.(3) 
Sublease Agreement, dated May 28, 2013, by and between Amylin Pharmaceuticals, LLC and 
MethylGene US, Inc.(4) 
Lease Agreement, dated June 24, 2014, by and between the Company and ARE-SD Region No. 20, 
LLC. (6) 
Letter Agreement, dated August 30, 2013, by and between the Registrant and Dr. Isan Chen.(5) 
Letter Agreement, Dated May 20, 2013, by and between Methylgene Inc. and James Christensen 
Form of Indemnity Agreement.(5) 
Subsidiaries of the Registrant.(1) 
Consent of Independent Registered Public Accounting Firm- US. 
Consent of Independent Registered Public Accounting Firm- Canada. 

Certification of the Principal Executive Officer pursuant to Rule 13a-14(a) or 15d-14(a) of the 
Securities Exchange Act of 1934. 

Certification of the Principal Financial Officer pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities 
Exchange Act of 1934. 

Certifications Pursuant to U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Public 
32.1 
Company Accounting Reform and Investor Protection Act of 2002. 
XBRL Instance Document. 
101.INS 
101.SCH 
XBRL Taxonomy Extension Schema Document. 
101.CAL  XBRL Taxonomy Extension Schema Document. 
101.DEF 
101.LAB  XBRL Taxonomy Extension Label Linkbase Document. 
101.PRE 

XBRL Taxonomy Extension Presentation Linkbase Document. 

XBRL Taxonomy Extension Definition Linkbase Document. 

77 

 
 
+ 

* 

(1) 

(2) 

(3) 

(4) 

(5) 

(6) 

Indicates management contract or compensatory plan. 

We have received confidential treatment for certain portions of this agreement, which have been omitted and filed 
separately with the SEC pursuant to Rule 406 under the Securities Act. 

Incorporated by reference to Mirati Therapeutics, Inc.’s Registration Statement on Form 10-12B (No. 001-35921), filed 
with the Securities and Exchange Commission on May 10, 2013. 

Incorporated by reference to Mirati Therapeutics, Inc.’s Amended Registration Statement on Form 10-12B/A (No. 001-
35921), filed with the Securities and Exchange Commission on June 14, 2013. 

Incorporated by reference to Mirati Therapeutics, Inc.’s Amended Registration Statement on Form 10-12B/A (No. 001-
35921), filed with the Securities and Exchange Commission on July 9, 2013. 

Incorporated by reference to Mirati Therapeutics, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 
2013, filed with the Securities and Exchange Commission on August 13, 2013. 

Incorporated by reference to Mirati Therapeutics, Inc.’s Registration Statement on Form S-1 (No. 333-191544), filed with 
the Securities and Exchange Commission on October 3, 2013. 

Incorporated by reference to Mirati Therapeutics, Inc.’s Current Report on Form 8-K, filed with the Securities and 
Exchange Commission on June 27, 2014. 

78 

 
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Corporate Information

Executive Management

Board of Directors

Charles M. Baum

Charles M. Baum

President and Chief Executive Officer

President and Chief Executive Officer

Transfer Agent

Computershare

Mark J. Gergen

Rodney Lappe

Executive Vice President, Chief

Chairman of the Board

Operating Officer

Isan Chen

Executive Vice President, Chief

Henry Fuchs

Director

Medical and Development Officer

Michael Grey

Director

James Christensen

Senior Vice President, Chief Scientific

Craig Johnson

Officer

Director

Jamie Donadio

Vice President, Finance

William R. Ringo

Director

Independent Registered
Public Accounting Firm

Ernst & Young LLP

Corporate Counsel

Cooley LLP

Investor Relations/
Media Contact

Anne Erickson

Dennis M. Hester

Vice President, Head of CMC

Perry Johnston

Vice President, Chief Legal Officer

Corporate Headquarters

9393 Towne Centre Drive

Suite 200

San Diego, CA 92121

The letter to shareholders along with the Form 10-K in this Annual Report include “forward-looking” statements within the meaning of the Private 
Securities Litigation Reform Act of 1995. Forward looking statements are based on the current expectations of management and upon what 
management believes to be reasonable assumptions based on information currently available to it. Such statements include, but are not limited to, 
statements regarding Mirati’s development plans and timelines, potential regulatory actions, expected use of cash resources, the timing and results 
of clinical trials, and the potential benefits of and markets for Mirati’s product candidates. Forward looking statements involve significant risks and 
uncertainties and are neither a prediction nor a guarantee of future events or circumstances, and those future events or circumstances may not 
occur. Such risks include, but are not limited to, potential delays in development timelines or negative clinical trial results, reliance on third parties 
for development efforts, changes in the competitive landscape, changes in the standard of care, as well as other risks described in Mirati’s filings 
with the U.S. Securities and Exchange Commission. We are including this cautionary note to make applicable, and to take advantage of, the safe 
harbor provisions of the Private Securities Litigation Reform Act of 1995 for forward-looking statements. We expressly disclaim any obligation to 
update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, unless required by law.

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Mirati Therapeutics, Inc.
Mirati Therapeutics, Inc.
9393 Towne Centre Drive, Suite 200
9393 Towne Centre Drive, Suite 200
San Diego, CA 92121
San Diego, CA 92121
(858) 332-3410
(858) 332-3410
www.mirati.com
www.mirati.com

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2014 Annual Report

Targeted cancer therapies for definedpatient populations